I have mockup like this
The HTML table to work with
The table above will calculate subtotal and total_harga using the entered value in jumlah. Calculations work fine, but my code is still using static JavaScript.
If there are a lot of rows in the table, it will be troublesome, if you have to write the getElementById code for all the inputs. How to use looping so that all the inputs can be handled without describing the table rows one by one. This is my HTML and JavaScript.
<div class="container">
<table class="tg" id="sales">
<thead>
<tr>
<th class="tg-0lax">No.</th>
<th class="tg-0lax">Item</th>
<th class="tg-0lax">Jumlah</th>
<th class="tg-0lax">Harga Satuan</th>
<th class="tg-0lax">Diskon Satuan</th>
<th class="tg-0lax">Sub-Total</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tg-0lax">1</td>
<td class="tg-0lax">MIE INSTAN</td>
<td class="tg-keyup"> <input type="text" id="input1" name="fname" onkeyup="CalculationPrice()" placeholder="Masukan jumlah"><br></td>
<td class="tg-0lax" id="harga_satuan1">5000</td>
<td class="tg-0lax" id="diskon_satuan1">500</td>
<td class="tg-0lax" id="sub_total1"></td>
</tr>
<tr>
<td class="tg-0lax">2</td>
<td class="tg-0lax">SUSU UHT</td>
<td class="tg-keyup"><input type="text" id="input2" name="fname" onkeyup="CalculationPrice()" placeholder="Masukan jumlah"><br></td>
<td class="tg-0lax" id="harga_satuan2">6000</td>
<td class="tg-0lax" id="diskon_satuan2">1000</td>
<td class="tg-0lax" id="sub_total2"></td>
</tr>
<tr>
<td class="tg-0lax">3</td>
<td class="tg-0lax">KERIPIK</td>
<td class="tg-keyup"> <input type="text" id="input3" name="fname" onkeyup="CalculationPrice()" placeholder="Masukan jumlah"><br></td>
<td class="tg-0lax" id="harga_satuan3">8000</td>
<td class="tg-0lax" id="diskon_satuan3">500</td>
<td class="tg-0lax" id="sub_total3"></td>
</tr>
<tr>
<td class="tg-0lax"></td>
<td class="tg-1lax" colspan="4">TOTAL HARGA</td>
<td class="tg-0lax" id="total_price"></td>
</tr>
</tbody>
</table>
this is my code javascript :
function CalculationPrice() {
let input1 = document.getElementById("input1").value;
let input2 = document.getElementById("input2").value;
let input3 = document.getElementById("input3").value;
let hargaSatuan1 = document.getElementById("harga_satuan1").innerText;
let hargaSatuan2 = document.getElementById("harga_satuan2").innerText;
let hargaSatuan3 = document.getElementById("harga_satuan3").innerText;
let diskonSatuan1 = document.getElementById("diskon_satuan1").innerText;
let diskonSatuan2 = document.getElementById("diskon_satuan2").innerText;
let diskonSatuan3 = document.getElementById("diskon_satuan3").innerText;
if(input1.length == 0){
let total1 = document.getElementById("sub_total1").innerHTML = 0;
}else if(input1.length > 0){
let subinput = (parseInt(hargaSatuan1) - parseInt(diskonSatuan1)) * parseInt(input1)
let total1 = document.getElementById("sub_total1").innerHTML = subinput;
}
if(input2.length == 0){
let total2 = document.getElementById("sub_total2").innerHTML = 0;
}
else if(input2.length > 0){
let subinput2 = (parseInt(hargaSatuan2) - parseInt(diskonSatuan2)) * parseInt(input2)
let total2 = document.getElementById("sub_total2").innerHTML = subinput2;
}
if(input3.length == 0){
let total3 = document.getElementById("sub_total3").innerHTML = 0;
}
else if(input3 !== null){
let subinput3 = (parseInt(hargaSatuan3) - parseInt(diskonSatuan3)) * parseInt(input3)
let total3 = document.getElementById("sub_total3").innerHTML = subinput3;
}
let total1 = document.getElementById("sub_total1").innerText
let total2 = document.getElementById("sub_total2").innerText
let total3 = document.getElementById("sub_total3").innerText
let total_price = parseInt(total1) + parseInt(total2) + parseInt(total3)
let totalPriceHtml = document.getElementById("total_price").innerHTML = formatRupiah(total_price, "Rp.");
}
function formatRupiah(angka, prefix) {
let number_string = angka.toString().replace(/[^,\d]/g, ""),
split = number_string.split(","),
sisa = split[0].length % 3,
rupiah = split[0].substr(0, sisa),
ribuan = split[0].substr(sisa).match(/\d{3}/gi);
if (ribuan) {
separator = sisa ? "." : "";
rupiah += separator + ribuan.join(".");
}
rupiah = split[1] != undefined ? rupiah + "," + split[1] : rupiah;
return prefix == undefined ? rupiah : rupiah ? "Rp. " + rupiah : "";
}
Using ids on a table makes a lot of unnecessary work, it's much easier to rely on the structure of a static table. And, instead of inline event handlers, we can benefit from event delegation. Here's an example of how to listen input event on tbody and a simple reduce loop to calculate the total sum of subtotals.
const tbody = document.querySelector('#sales'),
rows = Array.from(tbody.rows), // All the rows of the tbody
total = rows.pop().cells[2]; // The TOTAL HARGA cell
function calcTot(e) {
const value = +e.target.value || 0,
rowIndex = e.target.closest('tr').rowIndex - 1, // Constant 1 = the amount of the rows in thead
cells = Array.from(rows[rowIndex].cells),
harga = +cells[3].textContent,
diskon = +cells[4].textContent,
sub = cells[5];
sub.textContent = harga - diskon * value;
total.textContent = rows.reduce((acc, row) => {
return acc += +row.cells[5].textContent;
}, 0);
}
// Calculate the first sums
rows.forEach(row => {
// Call calcTot with a fake event object
calcTot({target: row.cells[2]});
});
tbody.addEventListener('input', calcTot);
<div class="container">
<table class="tg">
<thead>
<tr>
<th class="tg-0lax">No.</th>
<th class="tg-0lax">Item</th>
<th class="tg-0lax">Jumlah</th>
<th class="tg-0lax">Harga Satuan</th>
<th class="tg-0lax">Diskon Satuan</th>
<th class="tg-0lax">Sub-Total</th>
</tr>
</thead>
<tbody id="sales">
<tr>
<td class="tg-0lax">1</td>
<td class="tg-0lax">MIE INSTAN</td>
<td class="tg-keyup"> <input type="text" name="fname[]" placeholder="Masukan jumlah"></td>
<td class="tg-0lax">5000</td>
<td class="tg-0lax">500</td>
<td class="tg-0lax"></td>
</tr>
<tr>
<td class="tg-0lax">2</td>
<td class="tg-0lax">SUSU UHT</td>
<td class="tg-keyup"><input type="text" name="fname[]" placeholder="Masukan jumlah"></td>
<td class="tg-0lax">6000</td>
<td class="tg-0lax">1000</td>
<td class="tg-0lax"></td>
</tr>
<tr>
<td class="tg-0lax">3</td>
<td class="tg-0lax">KERIPIK</td>
<td class="tg-keyup"> <input type="text" name="fname[]" placeholder="Masukan jumlah"></td>
<td class="tg-0lax">8000</td>
<td class="tg-0lax">500</td>
<td class="tg-0lax"></td>
</tr>
<tr>
<td class="tg-0lax"></td>
<td class="tg-1lax" colspan="4">TOTAL HARGA</td>
<td class="tg-0lax"></td>
</tr>
</tbody>
</table>
</div>
Notice also, that I've moved the sales id from the table tag to the tbody tag, and how the event handler function is used to calculate the subtotal and total sums without an actual event by passing an object which contains the needed information of the event object.
First, you should have the data source (in an array of objects). Such as:
var dataSource = [
{ id: 1, item: "MIE INSTAN", HargaSatuan: 5000, DiskonSatuan: 500 },
{ id: 2, item: "SUSU UHT", HargaSatuan: 6000, DiskonSatuan: 1000 },
{ id: 3, item: "KERIPIK", HargaSatuan: 8000, DiskonSatuan: 500 },
]
Then, you can loop through this array to construct your table, using either JQuery or JavaScript's "insertRow()".
Reference link for JavaScript's insertRow()
<html>
<head>
<style>
table {
border-collapse: collapse;
}
table, td, th {
border: 1px solid black
}
</style>
</head>
<body>
<table id="myTable">
<tr>
<th class="tg-0lax">No.</th>
<th class="tg-0lax">Item</th>
<th class="tg-0lax">Jumlah</th>
<th class="tg-0lax">Harga Satuan</th>
<th class="tg-0lax">Diskon Satuan</th>
<th class="tg-0lax">Sub-Total</th>
</tr>
</table>
<br>
<script>
function myFunction() {
var dataSource = [{
id: 1,
item: "MIE INSTAN",
hargaSatuan: 5000,
diskonSatuan: 500
},
{
id: 2,
item: "SUSU UHT",
hargaSatuan: 6000,
diskonSatuan: 1000
},
{
id: 3,
item: "KERIPIK",
hargaSatuan: 8000,
diskonSatuan: 500
},
]
var table = document.getElementById("myTable");
dataSource.forEach(function(data, index) {
var row = table.insertRow(index + 1);
var noCell = row.insertCell(0);
var itemCell = row.insertCell(1);
var jumlahCell = row.insertCell(2);
var hargaSatuanCell = row.insertCell(3);
var diskonSatuanCell = row.insertCell(4);
var subTotalCell = row.insertCell(5);
noCell.innerHTML = data.id;
itemCell.innerHTML = data.item;
hargaSatuanCell.innerHTML = data.hargaSatuan;
diskonSatuanCell.innerHTML = data.diskonSatuan
})
}
myFunction()
</script>
</body>
</html>
You only need to modify the datasource and refresh the table if there are any new data.
This might not be the best method of doing this, but this will give you a basic understanding on the algorithm and steps required for your needs.
Related
I'm trying to find a total value of my user inputs. to get the aggregate which multiply the number with it same value
let Dem200 = document.querySelector(".input_200");
let output200 = document.querySelector(".result_200");
Dem200.addEventListener('blur', function() {
let result200 = parseInt(Dem200.value) * 200;
output200.innerHTML = result200;
})
let Dem100 = document.querySelector(".input_100");
let output100 = document.querySelector(".result_100");
Dem100.addEventListener('blur', function() {
let result100 = parseInt(Dem100.value) * 100;
output100.innerHTML = result100;
})
let Dem50 = document.querySelector(".input_50");
let Dem20 = document.querySelector(".input_20");
let Dem10 = document.querySelector(".input_10");
let Dem5 = document.querySelector(".input_5");
let Dem1 = document.querySelector(".input_1");
let output50 = document.querySelector(".result_50");
let output20 = document.querySelector(".result_20");
let output10 = document.querySelector(".result_10");
let output5 = document.querySelector(".result_5");
let output1 = document.querySelector(".result_1");
Dem50.addEventListener('blur', function() {
let result50 = parseInt(Dem50.value) * 50;
output50.innerHTML = result50;
})
Dem20.addEventListener('blur', function() {
let result20 = parseInt(Dem20.value) * 20;
output20.innerHTML = result20;
})
Dem10.addEventListener('blur', function() {
let result10 = parseInt(Dem10.value) * 10;
output10.innerHTML = result10;
})
Dem5.addEventListener('blur', function() {
let result5 = parseInt(Dem5.value) * 5;
output5.innerHTML = result5;
})
Dem1.addEventListener('blur', function() {
let result1 = parseInt(Dem1.value) * 1;
output1.innerHTML = result1;
})
window.onchange = function() {
var inputs = document.getElementsByTagName('input'),
resultinchancge = document.getElementById('total'),
sum = 0;
for (var i = 0; i < inputs.length; i++) {
var ip = inputs[i];
if (ip.name && ip.name.indexOf("total") < 0) {
sum += parseInt(ip.value) || 0;
}
}
resultinchancge.value = sum;
}
<!DOCTYPE html>
<html>
<head>
<style>
table,
th,
td {
border: 0px solid;
font-size: 30px;
}
input {
font-size: 30px;
}
input {
text-align: center;
}
</style>
</head>
<body>
<table>
<tr>
<th>200</th>
<th><input name="notes200" type="text" class="input_200"></th>
<th class="result_200"></th>
</tr>
<tr>
<th>100</th>
<th><input name="notes100" type="text" class="input_100"></th>
<th class="result_100"></th>
</tr>
<tr>
<th>50</th>
<th><input name="notes50" type="text" class="input_50"></th>
<th class="result_50"></th>
</tr>
<tr>
<th>20</th>
<th><input name="notes20" type="text" class="input_20"></th>
<th class="result_20"></th>
</tr>
<tr>
<th>10</th>
<th><input name="notes10" type="text" class="input_10"></th>
<th class="result_10"></th>
</tr>
<tr>
<th>5</th>
<th><input name="notes5" type="text" class="input_5"></th>
<th class="result_5"></th>
</tr>
<tr>
<th>1</th>
<th><input name="notes1" type="text" class="input_1"></th>
<th class="result_1"></th>
</tr>
<tr>
<th>Total1</th>
<th><input type="text" name="totalnotes" id="total" /></th>
</tr>
</table>
</body>
</html>
Please try to do like this. This will work for you.
window.onchange = function() {
var inputs = document.getElementsByTagName('input');
resultinchancge = document.getElementById('total');
const sum = [...document.querySelectorAll('[class*=result]')].reduce((r, e) => {
return r + parseInt(e.textContent)
}, 0)
console.log(sum)
resultinchancge.value = sum;
}
Here is another solution with minimal code:
const resAll=[...document.querySelectorAll("[class^=result_]")];
document.body.addEventListener("input",ev=>{
const el=ev.target, denom=+el.name.replace("notes","");
document.querySelector(".result_"+denom).textContent=el.value*denom;
document.getElementById("total").value=resAll.reduce((a,c)=>+c.textContent+a,0)
});
table,
th,
td {
border: 0px solid;
font-size: 30px;
}
input {
width: 100px;
font-size: 30px;
text-align: center;
}
<table>
<tr>
<th>200</th>
<th><input name="notes200" type="text" class="input_200"></th>
<th class="result_200"></th>
</tr>
<tr>
<th>100</th>
<th><input name="notes100" type="text" class="input_100"></th>
<th class="result_100"></th>
</tr>
<tr>
<th>50</th>
<th><input name="notes50" type="text" class="input_50"></th>
<th class="result_50"></th>
</tr>
<tr>
<th>20</th>
<th><input name="notes20" type="text" class="input_20"></th>
<th class="result_20"></th>
</tr>
<tr>
<th>10</th>
<th><input name="notes10" type="text" class="input_10"></th>
<th class="result_10"></th>
</tr>
<tr>
<th>5</th>
<th><input name="notes5" type="text" class="input_5"></th>
<th class="result_5"></th>
</tr>
<tr>
<th>1</th>
<th><input name="notes1" type="text" class="input_1"></th>
<th class="result_1"></th>
</tr>
<tr>
<th>Total1</th>
<th><input type="text" name="totalnotes" id="total" /></th>
</tr>
</table>
denom=+el.name.replace("notes","") gets the current denomination value the input element is referring to from its name by first removing the string "notes" and then converting the remaining string into a numerical value through the unary operator +. The next expression then updates the textContent of the correspoding ".result_"+denom element with the product of the input element's value and denom.
The third expression simply sums up all the .result... values by using a .reduce() loop.
Here's another problem encountered with js/html code. I typed some numbers at the top of the page, then after I pressed the button First Line, it will display the numbers I inputted in the first table row accordingly. If I press the button Last Line, I'd like it to display some numbers after getting done with some arithmetics, which is in the btn2 part in the js file, in the last table row of the page. I'd like to find out if it is the problem of innerHTML or valueAsNumber in the if statements, or the variables declared in the for loop not applicable in the later if statements, that caused the numbers in the last row cannot be displayed eventually.
The for loop and the if statement is intended for the page to scan the numbers inputted in the first row, do some arithmetics with them, and display them in the last row, in each respective cell. Is there any other way out to do so?
Thank you very much!
const tab = document.getElementById("tab");
const btn1 = document.getElementById('btn1');
const btn2 = document.getElementById('btn2');
var R1 = [R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R1C7, R1C8,
R1C9, R1C10, R1C11, R1C12, R1C13, R1C14, R1C15, R1C16];
var R2 = [R2C1, R2C2, R2C3, R2C4, R2C5, R2C6, R2C7, R2C8,
R2C9, R2C10, R2C11, R2C12, R2C13, R2C14, R2C15, R2C16];
btn1.addEventListener('click', () => {
for (var i = 0; i <= 15; i++) {
let row = tab.rows[1];
let c = row.cells[i];
let inpId = 'inp' + (i + 1);
let inpEl = document.getElementById(inpId);
c.innerHTML = inpEl.value;
}
});
btn2.addEventListener('click', () => {
for (var i = 0; i <= 15; i++) {
var r1c = R1[i].id;
var r2c = R2[i].id;
var r1El = document.getElementById(r1c);
var r2El = document.getElementById(r2c);
}
if (r1El.innerHTML > 0) {
var choices = [0, (r1El.valueAsNumber) % 7, (r1El.valueAsNumber + 2) % 7, (r1El.valueAsNumber - 2) % 7];
var x = Math.floor(Math.random() * choices.length);
if (choices[x] == choices.at(0)) {
r2El.innerHTML = choices[x];
} else if (choices[x] <= 0) {
r2El.innerHTML = choices[x] + 7;
}
}
});
th,
tr,
td {
border: 1px solid black;
padding: 5px;
width: 40px;
text-align: center;
}
<div class="container">
<div id="data">
<table id="inpdata">
<tr>
<td id="inpb1">Group 1</td>
<td id="inpb2">Group 2</td>
<td id="inpb3">Group 3</td>
<td id="inpb4">Group 4</td>
</tr>
<tr>
<td>
<input type="number" id="inp1" title="inp1">
<input type="number" id="inp2" title="inp2">
<input type="number" id="inp3" title="inp3">
<input type="number" id="inp4" title="inp4">
</td>
<td>
<input type="number" id="inp5" title="inp5">
<input type="number" id="inp6" title="inp6">
<input type="number" id="inp7" title="inp7">
<input type="number" id="inp8" title="inp8">
</td>
<td>
<input type="number" id="inp9" title="inp9">
<input type="number" id="inp10" title="inp10">
<input type="number" id="inp11" title="inp11">
<input type="number" id="inp12" title="inp12">
</td>
<td>
<input type="number" id="inp13" title="inp13">
<input type="number" id="inp14" title="inp14">
<input type="number" id="inp15" title="inp15">
<input type="number" id="inp16" title="inp16">
</td>
</tr>
</table>
<br>
<button id="btn1">First line</button>
<button id="btn2">Last line</button>
</div>
<div id="tables">
<table id="tab">
<tr>
<th colspan="4">Group 1</th>
<th colspan="4">Group 2</th>
<th colspan="4">Group 3</th>
<th colspan="4">Group 4</th>
</tr>
<tr>
<td id="R1C1"></td>
<td id="R1C2"></td>
<td id="R1C3"></td>
<td id="R1C4"></td>
<td id="R1C5"></td>
<td id="R1C6"></td>
<td id="R1C7"></td>
<td id="R1C8"></td>
<td id="R1C9"></td>
<td id="R1C10"></td>
<td id="R1C11"></td>
<td id="R1C12"></td>
<td id="R1C13"></td>
<td id="R1C14"></td>
<td id="R1C15"></td>
<td id="R1C16"></td>
</tr>
<tr>
<td id="R2C1"></td>
<td id="R2C2"></td>
<td id="R2C3"></td>
<td id="R2C4"></td>
<td id="R2C5"></td>
<td id="R2C6"></td>
<td id="R2C7"></td>
<td id="R2C8"></td>
<td id="R2C9"></td>
<td id="R2C10"></td>
<td id="R2C11"></td>
<td id="R2C12"></td>
<td id="R2C13"></td>
<td id="R2C14"></td>
<td id="R2C15"></td>
<td id="R2C16"></td>
</tr>
</table>
</div>
So you can Iterate the td by iterating the elements HTMLCollection property of the tr. Iterate two Iterables by using the index from one.
const tab = document.getElementById("tab");
const btn1 = document.getElementById('btn1');
const btn2 = document.getElementById('btn2');
const firstRow = tab.firstElementChild.children[1].children;
const secondRow = tab.firstElementChild.children[2].children;
btn1.addEventListener('click', () => {
for (var i = 0; i <= 7 /* <- This is a magic value - avoid these */; i++) {
let row = tab.rows[1];
let c = row.cells[i];
let inpId = 'inp' + (i + 1);
let inpEl = document.getElementById(inpId);
c.innerHTML = inpEl.value;
}
});
btn2.addEventListener('click', () => {
[...secondRow].forEach((el,index)=>{
//let group = Math.floor(index / 4);
let inp = parseInt(firstRow[index].innerText, 10);
if (!inp) return;
let choices = [0, inp, (inp + 2), (inp - 2)];
let x = (Math.floor(Math.random() * choices.length) + 7) % 7;
el.innerText = x;
})
});
th,
tr,
td {
border: 1px solid black;
padding: 5px;
width: 40px;
height: 1.5em;
text-align: center;
}
<div class="container">
<div id="data">
<table id="inpdata">
<tr>
<td id="inpb1">Group 1</td>
<td id="inpb2">Group 2</td>
</tr>
<tr>
<td>
<input type="number" id="inp1" title="inp1">
<input type="number" id="inp2" title="inp2">
<input type="number" id="inp3" title="inp3">
<input type="number" id="inp4" title="inp4">
</td>
<td>
<input type="number" id="inp5" title="inp5">
<input type="number" id="inp6" title="inp6">
<input type="number" id="inp7" title="inp7">
<input type="number" id="inp8" title="inp8">
</td>
</tr>
</table>
<br>
<button id="btn1">First line</button>
<button id="btn2">Last line</button>
</div>
<div id="tables">
<table id="tab">
<tr>
<th colspan="4">Group 1</th>
<th colspan="4">Group 2</th>
</tr>
<tr>
<td></td><td></td><td></td><td></td>
<td></td><td></td><td></td><td></td>
</tr>
<tr>
<td></td><td></td><td></td><td></td>
<td></td><td></td><td></td><td></td>
</tr>
</table>
</div>
Some additional advice:
I couldn't be bothered to clean up all of your code, next time please provide a Minimal Example, tree fields would have been plenty to ask the question.
Further please avoid magic numbers, like you use in your loops. Get the size of what you are iterating when you use it. This makes your code more flexible and reusable.
In the same vein: Please do not throw ids everywhere. They just beg to break your code if you ever try to reuse it somehow.
i have a code that should do heatmap when applied to html table:
html table code:
<table class='table' id='js-datatable' cellspacing="0.9" cellpadding="8" border="1">
<tr>
<th align=center style="white-space: nowrap;" bgcolor=grey>product</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>Jan</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>Feb</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>Mar</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>Apr</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>May</th>
</tr>
<tr class='heatmap-stable'>
<td align=center>K22</td>
<td align=center>655$</td>
<td align=center>365$</td>
<td align=center>265$</td>
<td align=center>125$</td>
<td align=center>36$</td>
</tr>
<tr class='heatmap-stable'>
<td align=center>K52</td>
<td align=center>90</td>
<td align=center>50</td>
<td align=center>120</td>
<td align=center>80</td>
<td align=center>190</td>
</tr>
<tr class='heatmap-stable'>
<td align=center>J42</td>
<td align=center>1267</td>
<td align=center>1567</td>
<td align=center>347</td>
<td align=center>697</td>
<td align=center>70</td>
</tr>
<script src='https://cdn.bootcdn.net/ajax/libs/jquery/2.1.3/jquery.js'></script>
<script type='text/javascript' src='script.js'></script>
</table>
javŠ°script file code:
function clean_formatted_data(str) {
return parseFloat (str.replace (/([%,$,\,])+/g, ''));
}
function col_to_array(tbl_col, target) {
// Returns column `n` (zero indexed) in table id `target` as an array
var colArray = $ ('#' + target + ' td:nth-child(' + tbl_col + ')').map (function () {
return clean_formatted_data ($ (this).text ());
}).get ();
return colArray;
}
//------ new schtuff ------------------------//
function get_pos_of_max(col_data) {
return $.inArray (Math.max.apply (Math, col_data), col_data)
}
function generate_opacities(col_data, max) {
var opacity_array = [];
var increment = max / (col_data.length);
for (i = col_data.length; i >= 1; i--) {
opacity_array.push (i * increment / 100);
}
return opacity_array;
}
function process_col_best_performing(tbl_col, target) {
var col_data = col_to_array (tbl_col, target);
var opacity_array = generate_opacities (col_data, 50);
var row_count = col_data.length;
for (var i = 1; i <= row_count; i++) {
$ ('#' + target + ' tr:nth-child(' + (get_pos_of_max (col_data) + 1) + ') td:nth-child(' + tbl_col + ')').css ('background', 'rgba(0,0,255,' + opacity_array[0] + ')');
col_data[get_pos_of_max (col_data)] = null;
for (const spliceElement of opacity_array.splice (0, 1)) {
}
}
}
lets say i have 5 columns, so my javascript function can be applied in this way:
process_col_best_performing (tbl_col:1, target:'js-datatable');
process_col_best_performing (tbl_col:2, target:'js-datatable');
process_col_best_performing (tbl_col:3, target:'js-datatable');
But because this is only an example, real html table can have any amount of columns i want to make this with a for loop, i tried with code below, but its not working
var cols_qty = document.getElementById ('js-datatable').rows[0].cells.length
var i;
for(i = 1; i < 4; i++) {
console.log(i)
process_col_best_performing(tbl_col=i,'js-datatable');
}
*I'm totally new in javascript, so if you know the answer, please explain it in the simplest way as possible.
Not sure if this helps, but try the below code, the first thing do not declare as global var i; before the for loop, I am not sure if you are doing the same in your code, but the same i is getting changed inside the function and affecting the loop where you are calling process_col_best_performing. Check the below code and see if this make sense.
var cols_qty = document.getElementById ('js-datatable').rows[0].cells.length
for(var i = 1; i < 4; i++) {
console.log(i)
process_col_best_performing(i,'js-datatable');
}
function clean_formatted_data(str) {
return parseFloat (str.replace (/([%,$,\,])+/g, ''));
}
function col_to_array(tbl_col, target) {
// Returns column `n` (zero indexed) in table id `target` as an array
var colArray = $ ('#' + target + ' td:nth-child(' + tbl_col + ')').map (function () {
return clean_formatted_data ($ (this).text ());
}).get ();
return colArray;
}
//------ new schtuff ------------------------//
function get_pos_of_max(col_data) {
return $.inArray (Math.max.apply (Math, col_data), col_data)
}
function generate_opacities(col_data, max) {
var opacity_array = [];
var increment = max / (col_data.length);
for (var i = col_data.length; i >= 1; i--) {
opacity_array.push (i * increment / 100);
}
return opacity_array;
}
function process_col_best_performing(tbl_col, target) {
var col_data = col_to_array (tbl_col, target);
var opacity_array = generate_opacities (col_data, 50);
var row_count = col_data.length;
for (var i = 1; i <= row_count; i++) {
$ ('#' + target + ' tr:nth-child(' + (get_pos_of_max (col_data) + 1) + ') td:nth-child(' + tbl_col + ')').css ('background', 'rgba(0,0,255,' + opacity_array[0] + ')');
col_data[get_pos_of_max (col_data)] = null;
for (const spliceElement of opacity_array.splice (0, 1)) {
}
}
}
<script src='https://cdn.bootcdn.net/ajax/libs/jquery/2.1.3/jquery.js'></script>
<table class='table' id='js-datatable' cellspacing="0.9" cellpadding="8" border="1">
<tr>
<th align=center style="white-space: nowrap;" bgcolor=grey>product</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>Jan</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>Feb</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>Mar</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>Apr</th>
<th align=center style="white-space: nowrap;" bgcolor=grey>May</th>
</tr>
<tr class='heatmap-stable'>
<td align=center>K22</td>
<td align=center>655$</td>
<td align=center>365$</td>
<td align=center>265$</td>
<td align=center>125$</td>
<td align=center>36$</td>
</tr>
<tr class='heatmap-stable'>
<td align=center>K52</td>
<td align=center>90</td>
<td align=center>50</td>
<td align=center>120</td>
<td align=center>80</td>
<td align=center>190</td>
</tr>
<tr class='heatmap-stable'>
<td align=center>J42</td>
<td align=center>1267</td>
<td align=center>1567</td>
<td align=center>347</td>
<td align=center>697</td>
<td align=center>70</td>
</tr>
</table>
I have the following html:
<table id='myTable'>
<tbody>
<tr>
<td id=col1">12</td>
<td id=col2">55</td>
<td id=col3">142</td>
<td id=col4">7</td>
</tr>
</tbody>
</table>
I would like to use JQuery to append everything after column 3 (col3) to a new row. Ideally I would end up with something like this:
<table id='myTable'>
<tbody>
<tr>
<td id=col1">12</td>
<td id=col2">55</td>
<td id=col3">142</td>
</tr>
<tr>
<td id=col4">7</td>
</tr>
</tbody>
</table>
Any ideas how this could be achieved? I have tried a few things but haven't been able to get it working.
You could define a generic redistribution function, that takes as argument the desired number of columns, and which just fills up the rows with content from top to bottom, using that number of columns.
It could even be a jQuery plugin:
$.fn.redistribute = function(maxNumCols) {
if (maxNumCols < 1) return;
$(this).each(function () {
let cells = Array.from($("td", this));
let $tr = $("tr", this);
let rowCount = Math.ceil(cells.length / maxNumCols);
for (let i = 0; i < rowCount; i++) {
let $row = i >= $tr.length ? $("<tr>").appendTo(this) : $tr.eq(i);
$row.append(cells.splice(0, maxNumCols));
}
});
}
// I/O management
function alignTable() {
let cols = +$("input").val(); // Get desired number of columns
$("#myTable").redistribute(cols); // Apply to table
}
// Refresh whenever input changes
$("input").on("input", alignTable);
// Refresh on page load
alignTable();
table { border-collapse: collapse; border: 2px solid }
td { border: 1px solid; padding: 4px }
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
Desired number of columns: <input type="number" size="3" value="4" min="1">
<table id='myTable'>
<tbody>
<tr>
<td>12</td>
<td>55</td>
<td>142</td>
<td>7</td>
<td>20</td>
<td>410</td>
<td>99</td>
</tr>
</tbody>
</table>
Here is a version with one extra statement that sets the colspan on the very last td element so it occupies the remaining columns in the last row:
$.fn.redistribute = function(maxNumCols) {
if (maxNumCols < 1) return;
$(this).each(function () {
let cells = Array.from($("td", this));
let $tr = $("tr", this);
let rowCount = Math.ceil(cells.length / maxNumCols);
for (let i = 0; i < rowCount; i++) {
let $row = i >= $tr.length ? $("<tr>").appendTo(this) : $tr.eq(i);
$row.append(cells.splice(0, maxNumCols));
}
$("td", this).last().attr("colspan", rowCount * maxNumCols - cells.length + 1);
});
}
// I/O management
function alignTable() {
let cols = +$("input").val(); // Get desired number of columns
$("#myTable").redistribute(cols); // Apply to table
}
// Refresh whenever input changes
$("input").on("input", alignTable);
// Refresh on page load
alignTable();
table { border-collapse: collapse; }
td { border: 1px solid; padding: 4px }
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
Desired number of columns: <input type="number" size="3" value="4" min="1">
<table id='myTable'>
<tbody>
<tr>
<td>12</td>
<td>55</td>
<td>142</td>
<td>7</td>
<td>20</td>
<td>410</td>
<td>99</td>
</tr>
</tbody>
</table>
It sounds like you're still new to jQuery. To give you an idea how to solve your described problem, I have written a solution here. I hope it helps you.
// parameters for splitting
var splitIndex = 3,
splitClass = '.split-columns';
// start the splitting
splitColumnsIntoRows();
function splitColumnsIntoRows() {
var $tables = $(splitClass),
numberTables = $tables.length;
if (numberTables == 0) {
return;
}
for (var i = 0; i < numberTables; i++) {
iterateSplittingRows($($tables[i]).find('tr'));
}
}
function iterateSplittingRows($currentRows) {
var $currentRow,
numberRows = $currentRows.length;
if (numberRows == 0) {
return;
}
for (var i = 0; i < numberRows; i++) {
$currentRow = $($currentRows[i]);
iterateSplittingFields($currentRow, $currentRow.find('th, td'));
}
}
function iterateSplittingFields($currentRow, $currentFields) {
var $newRow,
newRows = [],
childrenLength,
numberFields = $currentFields.length;
if (numberFields == 0) {
return;
}
for (var i = 0; i < numberFields; i++) {
if (i < splitIndex) {
continue;
}
if (i % splitIndex == 0) {
$newRow = $('<tr></tr>');
}
$newRow.append($currentFields[i]);
if (i == numberFields - 1) {
childrenLength = $newRow.children().length;
// fill the row with empty fields if the length does not fit the splitIndex
for (var j = splitIndex; j > childrenLength; j--) {
$newRow.append($('<td></td>'));
}
}
if (
(i >= splitIndex && i % splitIndex == splitIndex - 1)
||
i == numberFields - 1
){
newRows.push($newRow);
}
}
$currentRow.after(newRows);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table id="myTable" class="split-columns">
<tbody>
<tr>
<td class="col_01">01</td>
<td class="col_02">02</td>
<td class="col_03">03</td>
<td class="col_04">04</td>
<td class="col_05">05</td>
<td class="col_06">06</td>
<td class="col_07">07</td>
<td class="col_08">08</td>
<td class="col_09">09</td>
</tr>
<tr>
<td class="col_10">10</td>
<td class="col_11">11</td>
<td class="col_12">12</td>
<td class="col_13">13</td>
<td class="col_14">14</td>
<td class="col_15">15</td>
<td class="col_16">16</td>
<td class="col_17">17</td>
</tr>
<tr>
<td class="col_19">19</td>
<td class="col_20">20</td>
<td class="col_21">21</td>
<td class="col_22">22</td>
<td class="col_23">23</td>
<td class="col_24">24</td>
<td class="col_25">25</td>
</tr>
</tbody>
</table>
I am trying to do a form, when you click on checkbox it has to enables the rows of the form, but it's not working...
For example, there's a checkbox above the by clicking it, it has to enable the rest of rows
I'll appreciate any help,
Thanks in advance.
Here is what I have:
<HTML>
<HEAD>
<TITLE>Online Shopping</TITLE>
<SCRIPT>
//Variables Globales
var RowsInForm = 4
var ProductsInList = 4
var SalesTaxRate = 0.12
var TaxableState = "IVA(12%)"
var ProdSubscript = 0
function MakeArray(n) {
this.length = n
for (var i = 1; i<= n; i++) {
this[i] = 0
}
return this
}
function BuildZeroArray(n) {
this.length = n
for (var i = 0; i<= n; i++) {
this[i] = 0
}
return this
}
function prodobj(name, unitprice) {
this.name = name
this.unitprice = unitprice
}
function ordobj(prodsub, qty, unitprice, extprice) {
this.prodsub = prodsub
this.qty = qty
this.unitprice = unitprice
this.extprice = extprice
}
function strToZero(anyval) {
anyval = ""+anyval
if (anyval.substring(0,1) < "0" || anyval.substring(0,1) > "9") {
anyval = "0"
}
return eval(anyval)
}
function updateRow(rownum){
var exec = 'ProdSubscript = document.ordform.prodchosen'+rownum+'.selectedIndex'
eval (exec)
ordData[rownum].prodsub=ProdSubscript
var exec='tempqty=document.ordform.qty'+rownum+'.value'
eval (exec)
ordData[rownum].qty = strToZero(tempqty)
ordData[rownum].unitprice=prodlist[ProdSubscript].unitprice
ordData[rownum].extprice = (ordData[rownum].qty) * ordData[rownum].unitprice
var exec = 'document.ordform.unitprice'+rownum+'.value = currencyPad(ordData['+rownum+'].unitprice,10)'
eval (exec)
var exec = 'document.ordform.extprice'+rownum+'.value = currencyPad(ordData['+rownum+'].extprice,10)'
eval (exec)
updateTotals()
}
function updateTotals() {
var subtotal = 0
for (var i=1; i<=RowsInForm; i++) {
subtotal = subtotal + ordData[i].extprice
}
document.ordform.subtotal.value = currencyPad(subtotal,10)
salestax = 0
if (document.ordform.Taxable.checked) {
salestax = SalesTaxRate * subtotal * 0.30
}
document.ordform.salestax.value = currencyPad(salestax,10)
document.ordform.grandtotal.value = currencyPad(subtotal+salestax,10)
}
function copyAddress() {
document.ordform.ShipName.value = document.ordform.billName.value
document.ordform.ShipCompany.value = document.ordform.billCompany.value
document.ordform.ShipAdd1.value = document.ordform.billAdd1.value
document.ordform.ShipAdd2.value = document.ordform.billAdd2.value
document.ordform.ShipCSZ.value = document.ordform.billCSZ.value
}
function currencyPad(anynum,width) {
//returns number as string in $xxx,xxx.xx format.
anynum = "" + eval(anynum)
//evaluate (in case an expression sent)
intnum = parseInt(anynum)
//isolate integer portion
intstr = ""+intnum
//add comma in thousands place.
if (intnum >= 1000) {
intlen = intstr.length
temp1=parseInt(""+(intnum/1000))
temp2=intstr.substring(intlen-3,intlen)
intstr = temp1+","+temp2
}
if (intnum >= 1000000) {
intlen = intstr.length
temp1=parseInt(""+(intnum/1000000))
temp2=intstr.substring(intlen-7,intlen)
intstr = temp1+","+temp2
}
decnum = Math.abs(parseFloat(anynum)-parseInt(anynum)) //isolate decimal portion
decnum = decnum * 100 // multiply decimal portion by 100.
decstr = "" + Math.abs(Math.round(decnum))
while (decstr.length < 2) {
decstr += "0"
}
retval = intstr + "." + decstr
if (intnum < 0) {
retval=retval.substring(1,retval.length)
retval="("+retval+")"
}
retval = "BsF"+retval
while (retval.length < width){
retval=" "+retval
}
return retval
}
</SCRIPT>
</HEAD>
<BODY aLink=#8a8a8a bgColor=#ffffff
link=#ff0000 text=#000000 vLink=#215e21>
<H3 align=center><FONT color=#0000ff><FONT size=+1></FONT></FONT></H3>
<P><BR>
<SCRIPT>
//Create a new array named prodlist with six elements.
prodlist = new BuildZeroArray(ProductsInList) //Refers to global variable ProductsInList
//Populate that array with this product info.
//The first item, prodlist[0] must be a "non-product" with
//a unitprice of zero.
prodlist[0] = new prodobj('-none-',0)
prodlist[1] = new prodobj('Apple iPhone ',5200)
prodlist[2] = new prodobj('Pc Laptop',3520)
prodlist[3] = new prodobj('Impresora',4790)
prodlist[4] = new prodobj('TV',8650)
//Create a new array, named ordData, that contains empty Order Objects.
ordData = new MakeArray(RowsInForm)
for (var i=1; i<= RowsInForm; i++) {
ordData[i] = new ordobj(0,0,0,0)}
</SCRIPT>
<FORM name=ordform></P>
<CENTER>
<P><! Display the table header></P></CENTER>
<TABLE align=center border=1>
<CENTER>
<TBODY>
<TR>
<TH width=192>
<CENTER><B>Product</B></CENTER></TH>
<TH width=72>
<CENTER><B>Qty</B></CENTER></TH>
<TH width=120>
<CENTER><B>Unit Price</B></CENTER></TH>
<TH width=120>
<CENTER><B>Ext Price</B></CENTER></TH>
<P><INPUT type=checkbox value=true>
<SCRIPT>
for (var rownum = 1;rownum <= RowsInForm; rownum++) {
document.write('<TR><TD WIDTH=192>')
document.write('<SELECT NAME="prodchosen'+rownum+'" onChange= "updateRow('+rownum+')">')
for (i = 0; i <= ProductsInList; i++) {
document.write ("<OPTION>"+prodlist[i].name)
} document.write ('</SELECT>')
document.write ('</TD><TD WIDTH=72><CENTER><INPUT NAME="qty'+rownum+'" VALUE=""')
document.write ('MAXLENGTH="3" SIZE=3 onChange="updateRow('+rownum+')"></CENTER>')
document.write ('</TD><TD WIDTH=120><CENTER>')
document.write ('<INPUT NAME="unitprice'+rownum+'" VALUE="" MAXLENGTH="10"')
document.write ('SIZE=10 onfocus="this.blur()"></CENTER>')
document.write ('</TD><TD WIDTH=120><CENTER>')
document.write ('<INPUT NAME="extprice'+rownum+'" VALUE="" MAXLENGTH="10"')
document.write ('SIZE=10 onfocus = "this.blur()"></CENTER>')
document.write ('</TD></TR>')
}
</SCRIPT>
<P></P></CENTER></TBODY></TABLE>
<CENTER>
<P><! Second table holds subtotal, sales tax, grand total></P></CENTER>
<TABLE>
<TBODY>
<TR>
<TD width=264></TD>
<TD width=120>
<CENTER>
<P>Subtotal: </P></CENTER></TD>
<TD width=120>
<CENTER>
<P><INPUT maxLength=10 name=subtotal onfocus=this.blur()
size=10></P></CENTER></TD></TR>
<TR>
<TD width=264>
<P><INPUT name=Taxable onclick=updateTotals() type=checkbox value=true>
<SCRIPT>
document.write(TaxableState)
</SCRIPT>
</P></TD>
<TD width=120>
<CENTER>
<P>IVA:</P></CENTER></TD>
<TD width=120>
<CENTER>
<P><INPUT maxLength=10 name=salestax onfocus=this.blur()
size=10></P></CENTER></TD></TR>
<TR>
<TD width=264>
<TD width=120>
<CENTER>
<P>Total: </P></CENTER></TD>
<TD width=120>
<CENTER>
<P><INPUT maxLength=10 name=grandtotal onfocus=this.blur()
size=10></P></CENTER></TD></TR></TBODY></TABLE>
<!--<P><B>Bill To:</B> <! Onto Bill To and Ship To address portions of the form></P>
<TABLE align=center border=1>
<TBODY>
<TR>
<TD width=120>
<P>Name:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=billName size=50></P></TD></TR>
<TR>
<TD width=120>
<P>Company:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=billCompany size=50> </P></TD></TR>
<TR>
<TD width=120>
<P>Address1:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=billAdd1 size=50></P></TD></TR>
<TR>
<TD width=120>
<P>Address2:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=billAdd2 size=50> </P></TD></TR>
<TR>
<TD width=120>
<P>City, State, Zip:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=billCSZ size=50></P></TD></TR>
<TR>
<TD width=120>
<P>Phone:</P></TD>
<TD width=408>
<P><INPUT maxLength=25 name=Phone size=25></P></TD></TR>
<TR>
<TD width=120>
<P>Email address:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=email size=40></P></TD></TR></TBODY></TABLE>
<CENTER>
<P><INPUT onclick=copyAddress() type=button value="Copy 'Bill To' info to 'Ship To' blanks">
</P></CENTER>
<P><B>Ship To:</B> </P>
<TABLE align=center border=1>
<TBODY>
<TR>
<TD width=120>
<P>Name:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=ShipName size=50></P></TD></TR>
<TR>
<TD width=120>
<P>Company:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=ShipCompany size=50></P></TD></TR>
<TR>
<TD width=120>
<P>Address1:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=ShipAdd1 size=50></P></TD></TR>
<TR>
<TD width=120>
<P>Address2:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=ShipAdd2 size=50></P></TD></TR>
<TR>
<TD width=120>
<P>City, State, Zip:</P></TD>
<TD width=408>
<P><INPUT maxLength=75 name=ShipCSZ size=50></P></TD></TR></TBODY></TABLE>
<P><! In real life, you'd want to omit the whole onclick... thing in the input tag below. ><! Which is to say you want to get rid of... ><! onClick = "alert('I do not really get submitted anywhere. But thanks for trying me!')" ><INPUT onclick="alert('I do not really get submitted anywhere. But thanks for trying me!')" type=submit value=Submit>
<INPUT type=reset value=Reset> <! In real life, you can omit the entire input tag (i.e. the entire line) below ><INPUT onclick="self.location = 'jsindex.htm'" type=button value="All Done">
</FORM></P>-->
</body>
</html>