The primary objective of this application is to provide a search of a zipcode, followed by the display of the state associated with the zipcode once the zipcode has been located. How can I modify this code to reflect what it is that I am trying to acheive?
<input type="text" id="zipCode" placeholder="ZIP code" onKeyUp="validateZip()"/>
<div id="msg"></div>
function checkIfAvailable(zip)
{
let zones = [["90210","Beverly Hills"],
["90211","BH"]]
return( zones.indexOf(zip) >= 0 )
}
function validateZip()
{
let zip = document.getElementById("zipCode").value;
let msg =""
if(checkIfAvailable(zip)
{
msg="Our service is available in" + State
;
}
else
{
msg="Sorry our service is not available in this area";
}
document.getElementById("msg").innerHTML = msg;
}
if you can change the array to an object it would be as simple as:
let zones = {90210: "Beverly Hills", 90211:"BH"};
let msgElement = document.getElementById("msg")
function validateZip(userInput) {
if (userInput.value in zones) {
msgElement.innerHTML = "Our service is available in " + zones[userInput.value];
} else {
msgElement.innerHTML = "Sorry our service is not available in this area";
}
}
<input type="text" id="zipCode" placeholder="ZIP code" onKeyUp="validateZip(this)"/>
<div id="msg"></div>
checkIfAvailable can use find to return the inner array, if present:
function checkIfAvailable(zip) {
let zones = [...];
// Find an inner array where the first element [0]
// is the zip
return zones.find(item => item[0] === zip);
}
Then in validateZip:
const zone = checkIfAvailable(zip);
if (zone) {
// zone will be the matching inner array
// such as ["90210", "Beverly Hills"]
const State = zone[1];
msg = "Our service is available in " + State;
}
Related
I have a page, where I need to filter through all kinds of data (served as JSON variable) using just pure javascript. Everything works nicely until I try to implement a datalist where the contents of that list are updated in realtime, based on user input.
var data = [{name:"Paul"},{name:"Alex"},{name:"Laura"}] // This is just example object
function updateSearch() {
let search = document.getElementById('search').value;
let options = document.getElementById('searchList');
options.innerHTML = "";
if (search.length >= 2) {
search = search.toLowerCase();
for (let d of data) {
if (d.name.toLowerCase().search(search) === 0) {
options.innerHTML += `
<option>${d.name}</option>
`;
}
}
}
}
<datalist id='searchList'></datalist>
<input type="search" id="search" list='searchList' onchange="updateSearch()">
The goal is to not show the full list of names until at least 2 characters are entered, but it just won't update until the user clicks out focuses back to search input.
One solution to achieve what you require would be to replace the event type that updateSearch() is bound to from onchange to onkeyup:
const data = [
{ name : "Foo" },
{ name : "Bar" },
{ name : "Bing" },
{ name : "Bong" },
{ name : "Boo!" }];
function updateSearch() {
let search = document.getElementById('search').value;
let options = document.getElementById('searchList');
options.innerHTML = "";
if (search.length >= 2) {
search = search.toLowerCase();
for (let d of data) {
if (d.name.toLowerCase().search(search) === 0) {
options.innerHTML += `
<option>${d.name}</option>
`;
}
}
}
}
<datalist id='searchList'></datalist>
<!-- Update to onkeyup -->
<input type="search" id="search" list='searchList' onkeyup="updateSearch()">
Doing this will cause the datalist to interactivly update as the user types. Hope that helps!
Pretty new to javascript, i want to add and update my list but it doesn't work.
I tried adding following code but it didn't work
Product.prototype.addProduct = function() {
var elol = document.getElementById("lijst");
var nieuwNaam = document.createElement("li");
nieuwNaam.textContent= this.naam;
elol.appendChild(nieuwNaam);
var nieuwPrijs = document.createElement("li");
nieuwPrijs.textContent= this.prijs;
elol.appendChild(nieuwPrijs);
}
Product.prototype.getProducten = function() {
return this.naam + "(€ " + this.prijs +")";
}
This is the document i want wish would work propperly
<!DOCTYPE html>
<html>
<head>
<script src="oefwinkel.js"></script>
<script>
document.addEventListener("DOMContentLoaded", function() {
winkel.addProduct("Potlood", 10);
VulLijst();
var elBtn = document.getElementById("btn");
elBtn.onclick = VoegProductToe;
});
function VulLijst() {
var elol = document.getElementById("lijst");
var producten = winkel.getProducten("</li><li>");
if (producten.length > 0) {
elol.innerHTML = "<li>" + producten + "</li>";
} else {
elol.innerHTML = "";
}
}
function VoegProductToe() {
var naam = document.getElementById("txtNaam").value;
var prijs = document.getElementById("txtPrijs").value;
winkel.addProduct(naam, prijs);
VulLijst();
}
function Product(naam, prijs) {
this.naam = naam;
this.prijs = prijs;
}
</script>
</head>
<body>
<div><label for="txtNaam">Naam:</label>
<input type="text" id="txtNaam" /></div>
<div><label for="txtPrijs">Prijs:</label>
<input type="number" id="txtPrijs" /></div>
<input type="button" id="btn" value="Toevoegen/Updaten" />
<ol id="lijst">
</ol>
</body>
</html>
There is no list output how do i correct this?..
I really can't find the solution, what did i miss.. huh?
You had a few things missing,
The HTML code.
The winkel object was undefined.
The VulLijst function was doing nothing... because addProduct was taking care of this already.
You are relying on the instance fields (this.naam and this.prijs), but what you want to do is pass in method parameters (external variables).
As for updating, you will need to store a list of Products, clear the child elements of lijst, and re-add the items that represent the list.
Note: One thing I am confused about is why you named your class—that represents a list—Product, when it should really be an Inventory that allows you to ADD Product objects.
Code
// Uncaught ReferenceError: winkel is not defined
var winkel = new Product();
function Product(naam, prijs) {
this.naam = naam;
this.prijs = prijs;
}
Product.prototype.addProduct = function(naam, prijs) {
naam = naam || this.naam; // Default or instance field
prijs = prijs || this.prijs; // Default or instance field
console.log(naam, prijs);
var elol = document.getElementById("lijst");
var nieuwNaam = document.createElement("li");
nieuwNaam.textContent = naam;
elol.appendChild(nieuwNaam);
var nieuwPrijs = document.createElement("li");
nieuwPrijs.textContent = prijs;
elol.appendChild(nieuwPrijs);
}
Product.prototype.getProducten = function(naam, prijs) {
naam = naam || this.naam; // Default or instance field
prijs = prijs || this.prijs; // Default or instance field
return naam + " (€ " + prijs + ")";
}
document.addEventListener("DOMContentLoaded", function() {
winkel.addProduct("Potlood", 10); // Why are you adding a product to a product?
var elBtn = document.getElementById("btn");
elBtn.onclick = VoegProductToe;
});
function VoegProductToe() {
var naam = document.getElementById("txtNaam").value;
var prijs = document.getElementById("txtPrijs").value;
winkel.addProduct(naam, prijs);
}
label { font-weight: bold; }
<label>Product</label>
<input id="txtNaam" value="Something" />
<input id="txtPrijs"value="1.99" />
<button id="btn">Add</button>
<br/>
<ul id="lijst"></ul>
Explained
I will openly admit, I'm not 100% sure what you're trying to do, I assume that's due to a language barrier my side though, I'm not sure of the natural language that you use on a daily basis, i.e. some of the variable names seem unclear to me, but that's my problem, not yours! :)
Anyway, I used some guess work to figure out what you're trying to achieve, and I assumed that you're simply trying to have some sort of product list where each product has a name and a price attached to it?
You want to be able to add a product to the list, based on two input fields, then some button to add to/update that product list.
I've broken up the code into a couple of simple functions, with this solution you can add/remove as many functions, classes or whatever you want. In this answer you can clearly see that there's some render function, and some onUpdate function, I just went with these generic names for the sake of simplicity.
If you have any issues with this solution, please provide as much feedback as possible! I hope that it's been of some help one way or another.
// A simple product list.
const ProductList = () => {
const products = [];
let el = null;
// What you wish to return, aka an object...
return {
addProduct: (name, price) => {
products.push({
name: name,
price: price
});
onUpdate();
render(el, products);
},
setRoot: root => {
el = root;
},
// removeFromList, etc...
};
};
// A simple on update function.
const onUpdate = () => {
console.clear();
console.log('Update!');
};
// A 'simple' render function.
const render = (el, products) => {
if (el == null) return;
const template = obj => `<li>${obj.name} €${obj.price}</li>`;
let html = '';
products.forEach(product => html += template(product));
el.innerHTML = html;
};
// A function to dispatch some event(s).
const dispatchEvents = products => {
const btn = document.getElementById("btn");
const price = document.getElementById("price");
const name = document.getElementById("name");
// Just an example.
const isValid = () => {
if (price.value != '' && name.value != '') return true;
return false;
};
// Handle the on click event.
btn.onclick = () => {
if (isValid()) {
products.addProduct(name.value, price.value);
name.value = '';
price.value = '';
}
};
};
// A simple dom ready function.
const ready = () => {
const products = ProductList();
products.setRoot(document.getElementById("productList"));
products.addProduct('Demo', 10);
products.addProduct('Other', 19.99);
dispatchEvents(products);
};
document.addEventListener("DOMContentLoaded", ready);
<div>
<label for="name">name:</label>
<input type="text" id="name" />
</div>
<div>
<label for="price">Prijs:</label>
<input type="number" id="price" />
</div>
<input type="button" id="btn" value="Update" />
<ol id="productList">
</ol>
I have a Contact Form that utilizes Google Scripts. It successfully sends the email and formats it decently to my inbox, but there are 2 problems:
-I need it so that IF var key is equal to 'Action', then do not display it in the email it sends. Because right now, "Action send_message" is getting included in the email and I don't like that.
For this, I have unsuccessfully tried things like:
for (var idx in order) {
var key = order[idx];
//Skip this entry into the email output if it is the Action
if( key === 'Action') {
continue
}
It seems to not react to this code at all.
-I also need it so that if a city is selected, e.g. Alachua, that the email says 'Alachua' instead of 'Florida_Alachua'. But I can't add a NAME to an option since apparently options don't have that property. I also can't do the quick fix of changing the VALUE of the <option> to resolve this step, because of other code I have that conflicts with this route.
Google Scripts Code:
/******************************************************************************
* This tutorial is based on the work of Martin Hawksey twitter.com/mhawksey *
* But has been simplified and cleaned up to make it more beginner friendly *
* All credit still goes to Martin and any issues/complaints/questions to me. *
******************************************************************************/
// if you want to store your email server-side (hidden), uncomment the next line
var TO_ADDRESS = "myemail#email.com";
// spit out all the keys/values from the form in HTML for email
// uses an array of keys if provided or the object to determine field order
function formatMailBody(obj, order) {
var result = "";
if (!order) {
order = Object.keys(obj);
}
// loop over all keys in the ordered form data
for (var idx in order) {
var key = order[idx];
result += "<h4 style='text-transform: capitalize; margin-bottom: 0'>" + key + "</h4><div>" + sanitizeInput(obj[key]) + "</div>";
// for every key, concatenate an `<h4 />`/`<div />` pairing of the key name and its value,
// and append it to the `result` string created at the start.
}
return result; // once the looping is done, `result` will be one long string to put in the email body
}
// sanitize content from the user - trust no one
// ref: https://developers.google.com/apps-script/reference/html/html-output#appendUntrusted(String)
function sanitizeInput(rawInput) {
var placeholder = HtmlService.createHtmlOutput(" ");
placeholder.appendUntrusted(rawInput);
return placeholder.getContent();
}
function doPost(e) {
try {
Logger.log(e); // the Google Script version of console.log see: Class Logger
record_data(e);
// shorter name for form data
var mailData = e.parameters;
// names and order of form elements (if set)
var orderParameter = e.parameters.formDataNameOrder;
var dataOrder;
if (orderParameter) {
dataOrder = JSON.parse(orderParameter);
}
// determine recepient of the email
// if you have your email uncommented above, it uses that `TO_ADDRESS`
// otherwise, it defaults to the email provided by the form's data attribute
var sendEmailTo = (typeof TO_ADDRESS !== "undefined") ? TO_ADDRESS : mailData.formGoogleSendEmail;
// send email if to address is set
if (sendEmailTo) {
MailApp.sendEmail({
to: String(sendEmailTo),
subject: "Contact form submitted",
// replyTo: String(mailData.email), // This is optional and reliant on your form actually collecting a field named `email`
htmlBody: formatMailBody(mailData, dataOrder)
});
}
return ContentService // return json success results
.createTextOutput(
JSON.stringify({"result":"success",
"data": JSON.stringify(e.parameters) }))
.setMimeType(ContentService.MimeType.JSON);
} catch(error) { // if error return this
Logger.log(error);
return ContentService
.createTextOutput(JSON.stringify({"result":"error", "error": error}))
.setMimeType(ContentService.MimeType.JSON);
}
}
/**
* record_data inserts the data received from the html form submission
* e is the data received from the POST
*/
function record_data(e) {
var lock = LockService.getDocumentLock();
lock.waitLock(30000); // hold off up to 30 sec to avoid concurrent writing
try {
Logger.log(JSON.stringify(e)); // log the POST data in case we need to debug it
// select the 'responses' sheet by default
var doc = SpreadsheetApp.getActiveSpreadsheet();
var sheetName = e.parameters.formGoogleSheetName || "responses";
var sheet = doc.getSheetByName(sheetName);
var oldHeader = sheet.getRange(1, 1, 1, sheet.getLastColumn()).getValues()[0];
var newHeader = oldHeader.slice();
var fieldsFromForm = getDataColumns(e.parameters);
var row = [new Date()]; // first element in the row should always be a timestamp
// loop through the header columns
for (var i = 1; i < oldHeader.length; i++) { // start at 1 to avoid Timestamp column
var field = oldHeader[i];
var output = getFieldFromData(field, e.parameters);
row.push(output);
// mark as stored by removing from form fields
var formIndex = fieldsFromForm.indexOf(field);
if (formIndex > -1) {
fieldsFromForm.splice(formIndex, 1);
}
}
// set any new fields in our form
for (var i = 0; i < fieldsFromForm.length; i++) {
var field = fieldsFromForm[i];
var output = getFieldFromData(field, e.parameters);
row.push(output);
newHeader.push(field);
}
// more efficient to set values as [][] array than individually
var nextRow = sheet.getLastRow() + 1; // get next row
sheet.getRange(nextRow, 1, 1, row.length).setValues([row]);
// update header row with any new data
if (newHeader.length > oldHeader.length) {
sheet.getRange(1, 1, 1, newHeader.length).setValues([newHeader]);
}
}
catch(error) {
Logger.log(error);
}
finally {
lock.releaseLock();
return;
}
}
function getDataColumns(data) {
return Object.keys(data).filter(function(column) {
return !(column === 'formDataNameOrder' || column === 'formGoogleSheetName' || column === 'formGoogleSendEmail' || column === 'honeypot');
});
}
function getFieldFromData(field, data) {
var values = data[field] || '';
var output = values.join ? values.join(', ') : values;
return output;
}
Contact Form HTML
<section id="contact-form">
<form id="gform"
class="contact-form" method="post"
action="(Google Scripts URL)"
enctype="text/plain">
<p>
<label for="name">Your Name <font face="Arial" color="red">*</font></label>
<input type="text" style="height:35px;" class="heighttext required" name="name" id="name" class="required" title="* Please provide your name">
</p>
<p>
<label>Your Location <font face="Arial" color="red">*</font></label>
<select name="Location" id="column_select" style="height:35px;" class="required" title=" * Please provide your location">
<option selected value="col00">-- State --</option>
<option value="Alabama">Alabama</option>
<option value="California">California</option>
<option value="Florida">Florida</option>
</select>
<select name="City" id="layout_select" style="height:35px;">
<option disabled selected value="Florida">-- City --</option>
<option name="Alachua" value="Florida_Alachua">Alachua</option>
<option name="Alford" value="Florida_Alford">Alford</option>
</select>
</p>
<p>
<input type="submit" value="Send Message" id="submit" class="pp-btn special">
<img src="images/ajax-loader.gif" id="contact-loader" alt="Loading...">
<input type="hidden" name="action" value="send_message">
</p>
</form>
</section><!-- #contact-form -->
Form Handler Javascript
(function() {
function validEmail(email) { // see:
var re = /^([\w-]+(?:\.[\w-]+)*)#((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
return re.test(email);
}
function validateHuman(honeypot) {
if (honeypot) { //if hidden form filled up
console.log("Robot Detected!");
return true;
} else {
console.log("Welcome Human!");
}
}
// get all data in form and return object
function getFormData() {
var form = document.getElementById("gform");
var elements = form.elements;
var fields = Object.keys(elements).filter(function(k) {
return (elements[k].name !== "honeypot");
}).map(function(k) {
if(elements[k].name !== undefined) {
return elements[k].name;
// special case for Edge's html collection
}else if(elements[k].length > 0){
return elements[k].item(0).name;
}
}).filter(function(item, pos, self) {
return self.indexOf(item) == pos && item;
});
var formData = {};
fields.forEach(function(name){
var element = elements[name];
// singular form elements just have one value
formData[name] = element.value;
// when our element has multiple items, get their values
if (element.length) {
var data = [];
for (var i = 0; i < element.length; i++) {
var item = element.item(i);
if (item.checked || item.selected) {
data.push(item.value);
}
}
formData[name] = data.join(', ');
}
});
// add form-specific values into the data
formData.formDataNameOrder = JSON.stringify(fields);
formData.formGoogleSheetName = form.dataset.sheet || "responses"; // default sheet name
formData.formGoogleSendEmail = form.dataset.email || ""; // no email by default
console.log(formData);
return formData;
}
function handleFormSubmit(event) { // handles form submit without any jquery
event.preventDefault(); // we are submitting via xhr below
var data = getFormData(); // get the values submitted in the form
/* OPTION: Remove this comment to enable SPAM prevention, see README.md
if (validateHuman(data.honeypot)) { //if form is filled, form will not be submitted
return false;
}
*/
if( data.email && !validEmail(data.email) ) { // if email is not valid show error
var invalidEmail = document.getElementById("email-invalid");
if (invalidEmail) {
invalidEmail.style.display = "block";
return false;
}
} else {
disableAllButtons(event.target);
var url = event.target.action; //
var xhr = new XMLHttpRequest();
xhr.open('POST', url);
// xhr.withCredentials = true;
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.onreadystatechange = function() {
console.log( xhr.status, xhr.statusText )
console.log(xhr.responseText);
//document.getElementById("gform").style.display = "none"; // hide form
/*
var thankYouMessage = document.getElementById("thankyou_message");
if (thankYouMessage) {
thankYouMessage.style.display = "block";
}
*/
return;
};
// url encode form data for sending as post data
var encoded = Object.keys(data).map(function(k) {
return encodeURIComponent(k) + "=" + encodeURIComponent(data[k])
}).join('&')
xhr.send(encoded);
}
}
function loaded() {
console.log("Contact form submission handler loaded successfully.");
// bind to the submit event of our form
var form = document.getElementById("gform");
form.addEventListener("submit", handleFormSubmit, false);
};
document.addEventListener("DOMContentLoaded", loaded, false);
function disableAllButtons(form) {
var buttons = form.querySelectorAll("button");
for (var i = 0; i < buttons.length; i++) {
buttons[i].disabled = true;
}
}
})();
finally, this is the extra code that would break if I simply tried changing the value of option to, e.g., 'Alachua' instead of 'Flordia_Alachua'. https://jsfiddle.net/hmatt843/504dgmqy/19/
Thanks for any and all help.
Try console.log(key) before if( key === 'Action'). I think you'll find that key never equals 'Action', exactly. Looks like you'll need if( key === 'action'), instead.
If you wish to remove part of string value, try the replace method: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace
It also looks like you're trying to work with elements[k].name when you mean to be working with elements[k].value.
I believe your code should look something like...
function(k) {
if(elements[k].value !== undefined) {
return elements[k].value.replace('Florida_', '');
// special case for Edge's html collection
} else if(elements[k].length > 0){
return elements[k].item(0).value.replace('Florida_', '');
}
}
... or something to that effect.
In the future, you may want to make it easier for folks trying to help you by posting only the portions of code your having trouble with, and breaking your questions into different posts. A lot to sift through up there.
Hope this helped.
The split() method splits a String object into an array of strings by separating the string into substrings, using a specified separator string to determine where to make each split.
Var splitValue = elements[k].item(0).value.split("");
splitValue[1] will give you a string of characters after the delimeter () in this case.
I want the user to "Search" some "Authors" and if they select the one in the database they are sent to a corresponding HTML. Otherwise "No Author Found" displays...
For some reason I cannot wrangle it properly - pls help!
//Search by Author
function searchAuth() {
var search_string = document.getElementById('search_string').value;
var arrayelement = ["John","Stan","Henry","Paul","Samuel"];
for (i=0;i<arrayelement.length;i++) {
if (input == arrayelement.John) {
var itemLink = document.getElementById('demo').innerHTML =
"<a href='https://www.google.ca/?gws_rd=ssl'>Your link</a>";
} else if (input == arrayelement.Stan) {
var itemLink = document.getElementById('demo').innerHTML =
"<a href='https://www.google.ca/?gws_rd=ssl'>Your link</a>";
}else {
var itemLink = document.getElementById('demo').innerHTML =
"Author not found."
}
}
<!--Author-->
<h3>Search By Author</h3>
<form name="searchTest" onsubmit="return(searchAuth());" action="#">
<input type="text" id="search_string" />
<input type="submit"/>
<p id="demo"></p>
Perhaps you are trying to do things like these..
P.S this is just a demo, for you to start :)
EDIT: added few explanation on some stuffs you might get confuse with. :)
//events once textbox gets out focus
//the events varies on which or where do you want to add the event. it can be on click of a search button or submit button just like in your example.
document.getElementById('search-text-box-id').addEventListener("focusout", function() {
//searchString gets the textbox value.
var searchString = document.getElementById('search-text-box-id').value;
var searchList = ["John","Stan","Henry","Paul","Samuel"];
//Loop searchList
for (i=0; i < searchList.length; i++) {
//i which usually means the index or the key of the array's object(s).
var searchItem = "";
//searchList[i] loops its object by getting the index resulting to John, Stan and so on and so forth.
if (searchString == searchList[i]) {
searchItem = searchList[i];
document.getElementById('search-result-container').innerHTML = searchItem + " link";
//stop looping as the loop found a match.
return;
}
else {
searchItem = "Author not found.";
document.getElementById('search-result-container').innerHTML = searchItem;
}
}
});
<label for="search-text-box"></label>
<input type="text" id="search-text-box-id" name="search-text-box" />
<p id="search-result-container"></p>
Lets say I have the following in C
struct address{
char name;
int id;
char address;
};
struct address adrs[40]; //Create arbitrary array of the structure. 40 is example
adrs[0].name = 'a';
id[0] = 1;
...
What is the equivalent way of defining and creating array of a user defined structure.
Thanks
If you're going to have a predefined layout for an object, you'd probably want to use a contructor-style function.
function address() {
this.name = null;
this.id = null;
this.address = null;
}
arrays are not typed and you don't have to specify a length.
var adrs = [];
you can create a new instance of address like so
var item = new address(); // note the "new" keyword here
item.name = 'a';
item.id = 1;
// etc...
then you can push the new item onto the array.
adrs.push(item);
alernatively you can add a new item from the array and then access it by indexer.
// adrs has no items
adrs.push( new address() );
// adrs now has 1 item
adrs[0].name = 'a';
// you can also reference length to get to the last item
adrs[ adrs.length-1 ].id = '1';
Equivalent would be creating an array of associative arrays.
var arr = new Array();
arr[0] = { name: "name 1", id: 100, address: "addr 01" };
arr[1] = { name: "name 2", id: 101, address: "addr 02" };
//...
After this, you will be able to do:
arr[0].name = "new name 1";
Or access element:
if (arr[1].name == "name 2") { // will be true
}
Hope it helps.
Answer is veryyyy Simple.
const address = {
name: ""
id: 1,
address: ""
}
Or Dynamic
const address = (name, id, address) => {
// Here your checks if enters is correct
return {name, id, address}
}
If You Use TypeScript? It's so simple to.
interface address {
name: string;
id: number;
address: string;
}
const adress: adress = {
.....
}
<script type="text/javascript">
function address()
{
this.name="";
this.id=0;
this.address=""
}
var addresses = new Array(40);
addresses[0] = new address();
addresses[1] = new address();
.....
.....
addresses[0].name = 'a';
addresses[1].id = 5;
</script>
A common problem that is solved by structure is ranking system. An array that contains name and number of some users and then sorting users according to number. Here is javascript implementation of this problem.Object array is used here
<!DOCTYPE html>
<html>
<head>
<title>Structure</title>
</head>
<body>
<label>Enter Student Name 1:</label>
<input type="text" id='n0' name=""><br>
<label>Enter Student Mark 1:</label>
<input type="text" id='m0' name=""><br>
<label>Enter Student Name 2:</label>
<input type="text" id='n1' name=""><br>
<label>Enter Student Mark 2:</label>
<input type="text" id='m1' name=""><br>
<label>Enter Student Name 3:</label>
<input type="text" id='n2' name=""><br>
<label>Enter Student Mark 3:</label>
<input type="text" id='m2' name=""><br>
<input type="button" value="Ranking" onclick="result()">
<div id='id'></div>
<script type="text/javascript">
function result()
{
var b=new Array(100);
var n1=document.getElementById('n0').value;
var m1=document.getElementById('m0').value;
var n2=document.getElementById('n1').value;
var m2=document.getElementById('m1').value;
var n3=document.getElementById('n2').value;
var m3=document.getElementById('m2').value;
var a=new Array(100);
var b=new Array(100);
var n,m,j,i,temp,t,r="<br>Ranking<br><br>";
for(i=0;i<3;i++)
{
n=document.getElementById('n'+i).value;
m=document.getElementById('m'+i).value;
m=parseInt(m);
a[i]={name:n,mark:m};
}
for(i=0;i<3;i++)
{
for(j=i+1;j<3;j++)
{
if(a[j].mark>a[i].mark)
{
temp=a[i].mark;
t=a[i].name;
a[i].mark=a[j].mark;
a[i].name=a[j].name;
a[j].mark=temp;
a[j].name=t;
//console.log(a[i].name);
//console.log(a[i].mark);
}
}
}
for(i=0;i<3;i++)
{
r=r+a[i].name+" ";
r=r+a[i].mark+"<br>";
//console.log(a[i].name);
//console.log(a[i].mark);
}
document.getElementById('id').innerHTML=r;
}
</script>
</body>
</html>