I'm new to JS and I'm just practicing. I have this form that sets data in an object which is later displayed on the DOM. It works but it just shows a "key" at a time. If I add new elements they replace the existing one.
class Items {
constructor(namee, surnamee) {
this.namee = namee;
this.surnamee = surnamee;
}
}
function Func() {
event.preventDefault();
var nameval = document.getElementById('namee').value;
var surnval = document.getElementById('surnamee').value;
let newIt = new Items(nameval, surnval);
console.log(newIt)
document.getElementById('box').innerHTML = newIt.namee + " " + newIt.surnamee
}
<form onsubmit={Func()}>
<input id="namee" > </input>
<input id="surnamee"> </input>
<button type=submit> send </button>
</form>
<p id="box"> </p>
I've tried the push() method but it works with arrays. I've also tried to create an object instead of a class but I get the same grief
Thank you in advance
Maybe you looking for this:
class Items {
constructor(namee, surnamee) {
this.namee = namee;
this.surnamee = surnamee;
}
}
function Func() {
event.preventDefault();
var nameval = document.getElementById('namee').value;
var surnval = document.getElementById('surnamee').value;
let newIt = new Items(nameval, surnval);
console.log(newIt)
document.getElementById('box').innerHTML += `<p>` + newIt.namee + " " + newIt.surnamee + `</p>`;
}
<form onsubmit={Func()}>
<input id="namee" > </input>
<input id="surnamee"> </input>
<button type=submit> send </button>
</form>
<p id="box"> </p>
class Items {
constructor(namee, surnamee) {
this.namee = namee;
this.surnamee = surnamee;
}
}
function Func() {
event.preventDefault();
var nameval = document.getElementById('namee').value;
var surnval = document.getElementById('surnamee').value;
let newIt = new Items(nameval, surnval);
let html = `${document.getElementById('box').innerHTML}<p>${newIt.namee} ${newIt.surnamee}</p>`
document.getElementById('box').innerHTML = html
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title></title>
</head>
<body>
<form onsubmit={Func()}>
<input id="namee" > </input>
<input id="surnamee"> </input>
<button type=submit> send </button>
</form>
<p id="box"> </p>
</body>
</html>
Hope it help :)
or you can use this
https://www.w3schools.com/jsref/met_node_appendchild.asp
any stored value can be wrapped in a div tag
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title></title>
</head>
<body>
<form onsubmit={Func()}>
<input id="namee" > </input>
<input id="surnamee"> </input>
<button type=submit> send </button>
</form>
<p id="box"> </p>
</body>
</html>
<script>
class Items {
constructor(namee, surnamee) {
this.namee = namee;
this.surnamee = surnamee;
}
}
function Func() {
event.preventDefault();
var nameval = document.getElementById('namee').value;
var surnval = document.getElementById('surnamee').value;
let newIt = new Items(nameval, surnval);
console.log(newIt)
const row = document.createElement('div');
row.innerText = newIt.namee + " " + newIt.surnamee;
document.getElementById('box').appendChild(row);
}
</script>
Related
I've got a very simple form and I'm want the values to empty when I submit in order to use again without refreshing the page. What I've got isn't working for some reason.
My initial idea was to set the values of the inputs to empty strings on form submit, but when I log them into the console they don't do that. Anyone know what I'm doing wrong here?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
</head>
<body>
<form id="form">
<input id="volume" type="text" />
<input id="denied" type="text" />
<input id="charges" type="number" step="any" />
<button id="submit" type="btn-submit">Submit</button>
</form>
<div class="results">
<p class="rate">Current Denial Rate: </p>
<p class="recoverable">Recoverable Dollars: </p>
</div>
<script src="script.js"></script>
</body>
</html>
let form = document.getElementById("form");
let volume = document.getElementById("volume");
let denied = document.getElementById("denied");
let charges = document.getElementById("charges");
let submit = document.getElementById("btn-submit");
let results = document.querySelector(".results");
let rate = document.querySelector(".rate");
let recoverable = document.querySelector(".recoverable");
form.onsubmit = function (e) {
e.preventDefault();
volume = volume.value;
denied = denied.value;
charges = charges.value;
let curDenialRate = parseFloat((denied / volume) * 100);
charges = parseFloat(charges * 0.4);
function formatNumber(num) {
let formattedNum = num.toFixed(2);
return formattedNum;
}
let recoverableDollars = "$" + formatNumber(charges);
curDenialRate = formatNumber(curDenialRate) + "%";
rate.append(curDenialRate);
recoverable.append(recoverableDollars);
volume = " ";
denied = " ";
charges = " ";
return false;
};
Use HTMLFormElement.reset():
let form = document.getElementById("form");
const volume = document.getElementById("volume");
const denied = document.getElementById("denied");
const charges = document.getElementById("charges");
let submit = document.getElementById("btn-submit");
let results = document.querySelector(".results");
let rate = document.querySelector(".rate");
let recoverable = document.querySelector(".recoverable");
form.onsubmit = function(e) {
e.preventDefault();
let a = volume.value;
let b = denied.value;
let c = charges.value;
let curDenialRate = parseFloat((b / a) * 100);
c = parseFloat(c * 0.4);
function formatNumber(num) {
let formattedNum = num.toFixed(2);
return formattedNum;
}
let recoverableDollars = "$" + formatNumber(c);
curDenialRate = formatNumber(curDenialRate) + "%";
rate.append(curDenialRate);
recoverable.append(recoverableDollars);
form.reset();
return false;
};
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
</head>
<body>
<form id="form">
<input id="volume" type="text" />
<input id="denied" type="text" />
<input id="charges" type="number" step="any" />
<button id="submit" type="btn-submit">Submit</button>
</form>
<div class="results">
<p class="rate">Current Denial Rate: </p>
<p class="recoverable">Recoverable Dollars: </p>
</div>
<script src="script.js"></script>
</body>
</html>
How you are clearing values will not work. You are trying to change the variable but that will not affect the DOM element or its value.
You will have to use the below code with value property to change the value.
document.getElementById("volume").value= " ";
document.getElementById("denied").value= " ";
document.getElementById("charges").value= " ";
hey i need help with creating a delete button for my "notes" so it will delete it from the screen and the localstorage (u will notice i tried to make a delBtn function but with no success) i would appreciate if someone could post a fix to mine and explain me where i went wrong.
My JS
const tableBody = document.getElementById("tableBody");
const taskInfo = document.getElementById("taskInfo");
const taskDate = document.getElementById("taskDate");
const taskTime = document.getElementById("taskTime");
const delBtn = document.getElementById("delBtn")
let x = new Task("this is a test", "2021-04-14", "03:19");
let y = new Task("this is a 2nd test", "2021-04-14", "03:19");
//x.add();
//y.add();
let taskList = [
x, y, (new Task("this is a 3rd test", "2021-04-14", "03:19"))
];
if (localStorage.savedTaskList)
taskList = JSON.parse(localStorage.savedTaskList);
displayTable();
function displayTable() {
tableBody.innerHTML = "";
for (let task of taskList) {
const div = document.createElement("div");
div.setAttribute("class","taskZone");
const divTaskInfo = document.createElement("div");
divTaskInfo.setAttribute("class","taskInfo");
const divTaskDate = document.createElement("div");
divTaskDate.setAttribute("class","taskDate");
const divTaskTime = document.createElement("div");
divTaskTime.setAttribute("class","taskTime");
const delBtn = document.createElement("span");
delBtn.setAttribute("class","delBtn");
divTaskInfo.innerText = task.taskInfo;
divTaskDate.innerText = task.taskDate;
divTaskTime.innerText = task.taskTime;
div.append(divTaskInfo, divTaskDate, divTaskTime);
tableBody.appendChild(div);
}
}
delBtn.onclick = function delTask() {
delBtn.parentNode.removeChild(taskZoneElmToDel)
}
function addTask() {
if (taskInfo.value == '' || taskDate.value == '' || taskTime.value == '') {
return alert(`Please fill all the fields.`);
}else{newTask = new Task(taskInfo.value, taskDate.value, taskTime.value);
taskList.push(newTask);
localStorage.savedTaskList = JSON.stringify(taskList);
displayTable();
}
}
Thats the Html part of it
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Task Board</title>
<link rel="stylesheet" href="style.css">
<script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
</head>
<body>
<div class="scaleable-wrapper" id="scaleable-wrapper">
<div class="very-specific-design" id="very-specific-design">
<header class="Title">
My Task Board
</header>
<div id="Input">
</br>
</br>
<form class="Form" id="formInfo">
<label for="taskInfo">Task Info:</label>
<input type="text" id="taskInfo" name="taskInfo" required autofocus></input></br>
<label for="taskDate">Task Date:</label>
<input type="date" id="taskDate" name="taskDate" required></input></br>
<label for="taskTime">Task Time:</label>
<input type="time" id="taskTime" name="taskTime" required></input></br>
<input type="submit" id="addTaskDiv" class="btn" value="Save" onclick="addTask()"></input>
<input type="reset" id="resetForm" class="btn"></input>
</form>
</br>
</br>
</div>
<div class="outNotes"></div>
<div class="tableBody">
<table>
<tbody id="tableBody">
</tbody>
</table>
</div>
</div>
</div>
<input type="button" id="delBtn">x</input>
</body>
<script src="Task.js"></script>
<script src="script2.js"></script>
</html>
start = document.forms[0].start,
end = document.forms[0].end,
result = document.getElementById('result'),
btn = document.getElementById('btn'),
selector = document.getElementById('selector'),
i = start.value;
btn.onclick = ()=> {
"use strict";
for (i; i < end.value ; i++) {
selector.innerHTML += '<option>' + i + '</option>';
}
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>challenge</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" media="screen" href="selector.css" />
</head>
<body>
<header>
<h1>challenge 2 </h1>
<h2>Create an HTML select</h2>
</header>
<section id="input">
<div class="container">
<form>
<input type="text" name="start" id="start" >
<input type="text" name="end" id="end">
<button value="generate" id="btn"> generate</button>
</form>
</div>
</section>
<section id="result">
<select name="years" id="selector">
</select>
</section>
<script src="selector.js"></script>
</body>
</html>
It is supposed to create a new <option> for my <select>, but it executes for 1s only, and then every thing disappears.
I tried to print i on the console but even on the console make the results and every thing was gone.
I am sure I did every thing good so what is the solution to make it work here?
The form is being submitted when you click the button.
onload event can be used to set the click event of the button.
Prevent the submit:
<form onsubmit="return false;">
JS:
window.onload = function() {
btn = document.getElementById('btn');
btn.onclick = function() {
start = document.forms[0].start;
end = document.forms[0].end;
result = document.getElementById('result');
selector = document.getElementById('selector');
i = start.value;
for (i; i < end.value ; i++) {
selector.innerHTML += '<option>' + i + '</option>';
}
}
}
start = document.forms[0].start,
end = document.forms[0].end,
result = document.getElementById('result'),
btn = document.getElementById('btn'),
selector = document.getElementById('selector'),
i = start.value;
btn.onclick = ()=> {
'use strict';
for (i; i < end.value ; i++) {
selector.innerHTML += '<option>' + i + '</option>';
}
}
<section id="input">
<div class="container">
<form>
<input type="text" name="start" id="start" >
<input type="text" name="end" id="end">
<button type="button" value="generate" id="btn"> generate</button>
</form>
</div>
</section>
<section id="result">
<select name="years" id="selector">
</select>
</section>
Use type="button" into your button.
as simple example on your code, just add parameter event, and prevent defaults event of form submit, you can also change the type of
<button value="generate" id="btn" type='button'> generate</button>
btn.onclick = (event)=> {
"use strict";
for (i; i < end.value ; i++) {
selector.innerHTML += '<option>' + i + '</option>';
}
event.preventDefault();
}
If you are trying to add a new option to the select use the "appendChild()" function:
var form = document.getElementByTagName("form")[0];
var btn = document.getElementById('btn');
//To avoid refresh the page when the form is submited.
form.addEventListener("click", function(e){e.preventDefault()},false);
btn.onclick = () => {
var result = document.getElementById('selector'),
var option= document.createElement("option");
option.innerHTML = "some text";
result.appendChild(option);
}
This wild add a new option in the select each time you click the add button
I am new to JavaScript. below is my code to print array once new item is added but not printing the array. can someone help. below is my code. I am also not getting any error in console. I have used push method to add new item to array and once added calling display function to print the array.
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>
<body>
<input type="text" id="item" >
<br>
<br/>
<input type="button" value="Push" onClick="Push()">
<input type="button" value="Pop" onClick="Pop()">
<input type="button" value="Shift" onClick="Shift()">
<input type="button" value="UnShift" onClick="UnShift()">
<div id="list_items"> </div>
<script type="text/javascript">
var arra1=[12,34,56,67,78,89,87];
function display()
{
var lists=document.getElementById('list_items');
document.write("Array items are:<br>" );
for(var i=0;i<arra1.length;i++)
{
var para = document.createElement('div');
lists.appendChild(para);
para.innerHTML = arra1[i];
}
}
function Push()
{
var item1=document.getElementById("item").value;
arra1.push(item1);
display();
}
function Pop()
{
arra1.pop();
display();
}
</script>
</body>
</html>
So I just Edited this a little bit and got it working.
var arra1=[12,34,56,67,78,89,87];
function display()
{
var lists=document.getElementById('list_items');
for(var i=0;i<arra1.length;i++)
{
var para = document.createElement('p');
lists.appendChild(para);
para.innerHTML = arra1[i];
}
}
function Push()
{
var item1=document.getElementById("item").value;
arra1.push(item1);
display();
}
function Pop()
{
arra1.pop();
display();
}
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>
<body>
<input type="text" id="item" >
<br>
<br/>
<input type="button" value="Push" onClick="Push()">
<input type="button" value="Pop" onClick="Pop()">
<input type="button" value="Shift" onClick="Shift()">
<input type="button" value="UnShift" onClick="UnShift()">
<div id="list_items">
</div>
<scrip
</script>
</body>
</html>
I want to use HTML form elements in JavaScript. I used them like this but it doesn't work:
<form name="M">
<input name="in1" type="text" id="in1">
<input type="button" name="btn1" id="btn1" value="Check" onclick="f1()">
</form>
<script src="script.js"></script>
...and the JavaScript code was like this:
var s1 = 60;
function f1() {
``
if (document.M.elements[0] == s1) {
window.location = 'tick.htm';
} else {
window.location = 'cross.htm';
}
}
What is wrong here?
Just to give some clarification on why this was not working. In the test, document.M.elements[0] is a reference to the input object, not the value of the input. Using document.M.elements[0].value gives us the current value of the input.
//Ignore this, for display only.
function output(msg) {
var element = document.getElementById('output');
element.innerHTML = msg;
};
function f1() {
var s1 = 60;
if (document.M.elements[0].value == s1) {
output('Pass');
} else {
output('Fail');
}
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body>
<form name="M">
<input name="in1" type="text" id="in1">
<input type="button" name="btn1" id="btn1" value="Check" onclick="f1()">
</form>
<b id="output"></b>
</body>
</html>