I love clean code but I'm zero in javascript. I'd love to do two things to the super easy code below:
function nav_open() {
var myNav = document.getElementById('nav_anim');
if (myNav.className == 'nav_closed') {
myNav.className = 'nav_open';
} else {
myNav.className = 'nav_closed';
}
}
Use getElementsByTagName to target the nav instead of giving it a useless id (in order to use only <nav> instead of <nav id="nav_anim"> in the body. I tried some combos but none of them works.
Get rid of that ugly myNav name, is it mandatory? I know I can change it, but can I remove it? Is it possible to use something like
nav.className=='nav_closed' or even better className=='nav_closed' instead of myNav.className=='nav_closed'
I would suggest keeping the id on your nav, targetting your DOM elements using ids or classes is something that is commonly done and can speed up lookup. Using getElementsByTagName() adds unnecessary complexity and would need to traverse your entire DOM to find your element, so it isn't very efficient, espeicially if you just have one nav element. If you really want to, you could use querySelector to select the first nav item:
const myNav = document.querySelector("nav");
At the end of the day though, if you want to interact with elements in your JavaScript code, you'll need to explicitly grab them (not counting named access on the global window object as it is recommended not to use this).
To further improve your toggle code, you could perform two toggles using DOMTokenList.toggle(), one to hide your first class and one to add your other. Every time you run both toggles, they will add/remove both classes depending on whether they exist or not:
const myNav = document.getElementById("nav_anim");
myNav.classList.toggle('nav_closed');
myNav.classList.toggle('nav_open');
See example below:
const btn = document.getElementById("btn");
btn.addEventListener("click", () => {
btn.classList.toggle("on");
btn.classList.toggle("off");
});
.on {
background-color: lightgreen;
}
.off {
background-color: red;
}
<button id="btn" class="on">Click me</button>
Depending on your code, you may even be able to remove the nav_closed class by targeting your nav element that does not have the nav_open class:
#nav_anim:not(.nav_open) {
/* nav_closed styles */
}
With this setup, you can use just one toggle:
const myNav = document.getElementById("nav_anim");
myNav.classList.toggle('nav_open');
See example below:
const btn = document.getElementById("btn");
btn.addEventListener("click", () => {
btn.classList.toggle("on");
});
.on {
background-color: lightgreen;
}
#btn:not(.on) {
background-color: red;
}
<button id="btn" class="on">Click me</button>
You should be able to do this with a conditional (ternary) operator, like so:
var nav = document.getElementsByTagName("nav")[0];
(nav.classList.contains('nav_open')) ? nav.classList.remove('nav_open') : nav.classList.add('nav_open'));
This is like a 1 line if statement with 3 parameters:
condition ? exprIfTrue : exprIfFalse
I need to be able to change out the css applied to the <body> on the fly. How, using javascript, could this be accomplished?
My css is stored as a string in a Javascript variable. I am not working with css files. The css consists of around 50 classes, so it doesn't make sense to apply them one-by-one. I know how this could be accomplished by changing the lowest class, but I'm just trying to see if it's possible to do using Javascript commands and variables.
Pseudo Code
var x = "#nav-bar-wrapper {
background-color: #4a3e7d;
padding: 20px 0;
}
#header-nav {
display: flex;
justify-content: center;
}...";
function changeCss() {
var el = $('myelement');
SomeJavaScriptFunction(el, x);
}
As #evolutionbox pointed out, it looks like you want to add new styles to the page. If so, just add them as text content in a style element:
const css = '#nav-bar-wrapper { ... }'
function changeCss() {
const el = document.createElement('style')
el.textContent = css
document.head.appendChild(el)
}
One easy way of doing it would be:
document.querySelector("yourElement").style.cssText += "Your super long string will go here and itll work"
Although, I dont think theres a way of giving different elements a uniqe style all in one line other than appending a style tag to the html. To use the method above, you'd have to separate #nav-bar-wrapper and #header-nav
Just keep in mind to use `` rather than "" to make the string go onto multiple lines
Here's a more JavaScript-y method than using hacky style tags.
const button = document.getElementById('button');
button.onclick = () => {
[
[ 'background', 'black' ],
[ 'color', 'white' ]
].map(([ prop, val ]) => {
button.style[prop] = val;
});
};
<button id="button">Hello there</button>
You could also try out https://cssinjs.org, which also works great in React.
Perhaps using jQuery's .css() function is worthy too: https://api.jquery.com/css/. It can take an object of CSS properties and apply them to an element.
$('#button').on('click', () => {
$('#button').css({ background: 'black', color: 'white' });
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<button id="button">Hi there</button>
You could also create a new style tag and append it to the body as many people have said. You can even append an external link rel="stylesheet" tag to the header to dynamically add a stylesheet from another URL! An alternative to this would be using the fetch API/jQuery AJAX/xmlhttprequest plus the code below:
$('#button').on('click', () => {
$('body').append('<style>#button { background: black; color: white; }</style>');
});
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<button id="button">Hi there</button>
</body>
Another approach is using classes that you can dynamically add in JavaScript.
$('button').on('click', () => $('#button').addClass('clicked'));
.clicked {
background: black;
color: white;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<button id="button">Hi there</button>
You need to get a reference of your html element and after manipulate the DOM, here is an example:
document.getElementById('yourElementIdHere').style.color = 'red';
If you want to get your body reference to manipulate the DOM, you can do it. After this, you can change the style of your body using the style property, and use your string with your css.
document.querySelector("body").style = yourCssStringVar;
This link can help you, too:
JavaScript HTML DOM - Changing CSS
How do you add an onload event to an element?
Can I use:
<div onload="oQuickReply.swap();" ></div>
for this?
No, you can't. The easiest way to make it work would be to put the function call directly after the element
Example:
...
<div id="somid">Some content</div>
<script type="text/javascript">
oQuickReply.swap('somid');
</script>
...
or - even better - just in front of </body>:
...
<script type="text/javascript">
oQuickReply.swap('somid');
</script>
</body>
...so it doesn't block the following content from loading.
You can trigger some js automatically on an IMG element using onerror, and no src.
<img src onerror='alert()'>
The onload event can only be used on the document(body) itself, frames, images, and scripts. In other words, it can be attached to only body and/or each external resource. The div is not an external resource and it's loaded as part of the body, so the onload event doesn't apply there.
onload event it only supports with few tags like listed below.
<body>, <frame>, <iframe>, <img>, <input type="image">, <link>, <script>, <style>
Here the reference for onload event
Try this! And never use trigger twice on div!
You can define function to call before the div tag.
$(function(){
$('div[onload]').trigger('onload');
});
DEMO: jsfiddle
I just want to add here that if any one want to call a function on load event of div & you don't want to use jQuery(due to conflict as in my case) then simply call a function after all the html code or any other code you have written including the function code and
simply call a function .
/* All Other Code*/
-----
------
/* ----At the end ---- */
<script type="text/javascript">
function_name();
</script>
OR
/* All Other Code*/
-----
------
/* ----At the end ---- */
<script type="text/javascript">
function my_func(){
function definition;
}
my_func();
</script>
I needed to have some initialization code run after a chunk of html (template instance) was inserted, and of course I didn't have access to the code that manipulates the template and modifies the DOM. The same idea holds for any partial modification of the DOM by insertion of an html element, usually a <div>.
Some time ago, I did a hack with the onload event of a nearly invisible <img> contained in a <div>, but discovered that a scoped, empty style will also do:
<div .... >
<style scoped="scoped" onload="dosomethingto(this.parentElement);" > </style>
.....
</div>
Update(Jul 15 2017) -
The <style> onload is not supported in last version of IE. Edge does support it, but some users see this as a different browser and stick with IE. The <img> element seems to work better across all browsers.
<div...>
<img onLoad="dosomthing(this.parentElement);" src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" />
...
</div>
To minimize the visual impact and resource usage of the image, use an inline src that keeps it small and transparent.
One comment I feel I need to make about using a <script>is how much harder it is to determine which <div> the script is near, especially in templating where you can't have an identical id in each instance that the template generates. I thought the answer might be document.currentScript, but this is not universally supported. A <script> element cannot determine its own DOM location reliably; a reference to 'this' points to the main window, and is of no help.
I believe it is necessary to settle for using an <img> element, despite being goofy. This might be a hole in the DOM/javascript framework that could use plugging.
Avoid using any interval-based methods (as they are not performant and accurate) and use MutationObserver targeting a parent div of dynamically loaded div for better efficiency.
Update: Here's a handy function I wrote. Use it like this:
onElementLoaded("div.some_class").then(()=>{}).catch(()=>{});
/**
*
* Wait for an HTML element to be loaded like `div`, `span`, `img`, etc.
* ex: `onElementLoaded("div.some_class").then(()=>{}).catch(()=>{})`
* #param {*} elementToObserve wait for this element to load
* #param {*} parentStaticElement (optional) if parent element is not passed then `document` is used
* #return {*} Promise - return promise when `elementToObserve` is loaded
*/
function onElementLoaded(elementToObserve, parentStaticElement) {
const promise = new Promise((resolve, reject) => {
try {
if (document.querySelector(elementToObserve)) {
console.log(`element already present: ${elementToObserve}`);
resolve(true);
return;
}
const parentElement = parentStaticElement
? document.querySelector(parentStaticElement)
: document;
const observer = new MutationObserver((mutationList, obsrvr) => {
const divToCheck = document.querySelector(elementToObserve);
if (divToCheck) {
console.log(`element loaded: ${elementToObserve}`);
obsrvr.disconnect(); // stop observing
resolve(true);
}
});
// start observing for dynamic div
observer.observe(parentElement, {
childList: true,
subtree: true,
});
} catch (e) {
console.log(e);
reject(Error("some issue... promise rejected"));
}
});
return promise;
}
Implementation details:
HTML:
<div class="parent-static-div">
<div class="dynamic-loaded-div">
this div is loaded after DOM ready event
</div>
</div>
JS:
var observer = new MutationObserver(function (mutationList, obsrvr) {
var div_to_check = document.querySelector(".dynamic-loaded-div"); //get div by class
// var div_to_check = document.getElementById('div-id'); //get div by id
console.log("checking for div...");
if (div_to_check) {
console.log("div is loaded now"); // DO YOUR STUFF!
obsrvr.disconnect(); // stop observing
return;
}
});
var parentElement = document.querySelector("parent-static-div"); // use parent div which is already present in DOM to maximise efficiency
// var parentElement = document // if not sure about parent div then just use whole 'document'
// start observing for dynamic div
observer.observe(parentElement, {
// for properties details: https://developer.mozilla.org/en-US/docs/Web/API/MutationObserverInit
childList: true,
subtree: true,
});
we can use MutationObserver to solve the problem in efficient way adding a sample code below
<!DOCTYPE html>
<html>
<head>
<title></title>
<style>
#second{
position: absolute;
width: 100px;
height: 100px;
background-color: #a1a1a1;
}
</style>
</head>
<body>
<div id="first"></div>
<script>
var callthis = function(element){
element.setAttribute("tabIndex",0);
element.focus();
element.onkeydown = handler;
function handler(){
alert("called")
}
}
var observer = new WebKitMutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
for (var i = 0; i < mutation.addedNodes.length; i++)
if(mutation.addedNodes[i].id === "second"){
callthis(mutation.addedNodes[i]);
}
})
});
observer.observe(document.getElementById("first"), { childList: true });
var ele = document.createElement('div');
ele.id = "second"
document.getElementById("first").appendChild(ele);
</script>
</body>
</html>
In November 2019, I am seeking a way to create a (hypothetical) onparse EventListener for <elements> which don't take onload.
The (hypothetical) onparse EventListener must be able to listen for when an element is parsed.
Third Attempt (and Definitive Solution)
I was pretty happy with the Second Attempt below, but it just struck me that I can make the code shorter and simpler, by creating a tailor-made event:
let parseEvent = new Event('parse');
This is the best solution yet.
The example below:
Creates a tailor-made parse Event
Declares a function (which can be run at window.onload or any time) which:
Finds any elements in the document which include the attribute data-onparse
Attaches the parse EventListener to each of those elements
Dispatches the parse Event to each of those elements to execute the Callback
Working Example:
// Create (homemade) parse event
let parseEvent = new Event('parse');
// Create Initialising Function which can be run at any time
const initialiseParseableElements = () => {
// Get all the elements which need to respond to an onparse event
let elementsWithParseEventListener = document.querySelectorAll('[data-onparse]');
// Attach Event Listeners and Dispatch Events
elementsWithParseEventListener.forEach((elementWithParseEventListener) => {
elementWithParseEventListener.addEventListener('parse', updateParseEventTarget, false);
elementWithParseEventListener.dataset.onparsed = elementWithParseEventListener.dataset.onparse;
elementWithParseEventListener.removeAttribute('data-onparse');
elementWithParseEventListener.dispatchEvent(parseEvent);
});
}
// Callback function for the Parse Event Listener
const updateParseEventTarget = (e) => {
switch (e.target.dataset.onparsed) {
case ('update-1') : e.target.textContent = 'My First Updated Heading'; break;
case ('update-2') : e.target.textContent = 'My Second Updated Heading'; break;
case ('update-3') : e.target.textContent = 'My Third Updated Heading'; break;
case ('run-oQuickReply.swap()') : e.target.innerHTML = 'This <code><div></code> is now loaded and the function <code>oQuickReply.swap()</code> will run...'; break;
}
}
// Run Initialising Function
initialiseParseableElements();
let dynamicHeading = document.createElement('h3');
dynamicHeading.textContent = 'Heading Text';
dynamicHeading.dataset.onparse = 'update-3';
setTimeout(() => {
// Add new element to page after time delay
document.body.appendChild(dynamicHeading);
// Re-run Initialising Function
initialiseParseableElements();
}, 3000);
div {
width: 300px;
height: 40px;
padding: 12px;
border: 1px solid rgb(191, 191, 191);
}
h3 {
position: absolute;
top: 0;
right: 0;
}
<h2 data-onparse="update-1">My Heading</h2>
<h2 data-onparse="update-2">My Heading</h2>
<div data-onparse="run-oQuickReply.swap()">
This div hasn't yet loaded and nothing will happen.
</div>
Second Attempt
The First Attempt below (based on #JohnWilliams' brilliant Empty Image Hack) used a hardcoded <img /> and worked.
I thought it ought to be possible to remove the hardcoded <img /> entirely and only dynamically insert it after detecting, in an element which needed to fire an onparse event, an attribute like:
data-onparse="run-oQuickReply.swap()"
It turns out, this works very well indeed.
The example below:
Finds any elements in the document which include the attribute data-onparse
Dynamically generates an <img src /> and appends it to the document, immediately after each of those elements
Fires the onerror EventListener when the rendering engine parses each <img src />
Executes the Callback and removes that dynamically generated <img src /> from the document
Working Example:
// Get all the elements which need to respond to an onparse event
let elementsWithParseEventListener = document.querySelectorAll('[data-onparse]');
// Dynamically create and position an empty <img> after each of those elements
elementsWithParseEventListener.forEach((elementWithParseEventListener) => {
let emptyImage = document.createElement('img');
emptyImage.src = '';
elementWithParseEventListener.parentNode.insertBefore(emptyImage, elementWithParseEventListener.nextElementSibling);
});
// Get all the empty images
let parseEventTriggers = document.querySelectorAll('img[src=""]');
// Callback function for the EventListener below
const updateParseEventTarget = (e) => {
let parseEventTarget = e.target.previousElementSibling;
switch (parseEventTarget.dataset.onparse) {
case ('update-1') : parseEventTarget.textContent = 'My First Updated Heading'; break;
case ('update-2') : parseEventTarget.textContent = 'My Second Updated Heading'; break;
case ('run-oQuickReply.swap()') : parseEventTarget.innerHTML = 'This <code><div></code> is now loaded and the function <code>oQuickReply.swap()</code> will run...'; break;
}
// Remove empty image
e.target.remove();
}
// Add onerror EventListener to all the empty images
parseEventTriggers.forEach((parseEventTrigger) => {
parseEventTrigger.addEventListener('error', updateParseEventTarget, false);
});
div {
width: 300px;
height: 40px;
padding: 12px;
border: 1px solid rgb(191, 191, 191);
}
<h2 data-onparse="update-1">My Heading</h2>
<h2 data-onparse="update-2">My Heading</h2>
<div data-onparse="run-oQuickReply.swap()">
This div hasn't yet loaded and nothing will happen.
</div>
First Attempt
I can build on #JohnWilliams' <img src> hack (on this page, from 2017) - which is, so far, the best approach I have come across.
The example below:
Fires the onerror EventListener when the rendering engine parses <img src />
Executes the Callback and removes the <img src /> from the document
Working Example:
let myHeadingLoadEventTrigger = document.getElementById('my-heading-load-event-trigger');
const updateHeading = (e) => {
let myHeading = e.target.previousElementSibling;
if (true) { // <= CONDITION HERE
myHeading.textContent = 'My Updated Heading';
}
// Modern alternative to document.body.removeChild(e.target);
e.target.remove();
}
myHeadingLoadEventTrigger.addEventListener('error', updateHeading, false);
<h2>My Heading</h2>
<img id="my-heading-load-event-trigger" src />
use an iframe and hide it iframe works like a body tag
<!DOCTYPE html>
<html>
<body>
<iframe style="display:none" onload="myFunction()" src="http://www.w3schools.com"></iframe>
<p id="demo"></p>
<script>
function myFunction() {
document.getElementById("demo").innerHTML = "Iframe is loaded.";
}
</script>
</body>
</html>
Since the onload event is only supported on a few elements, you have to use an alternate method.
You can use a MutationObserver for this:
const trackElement = element => {
let present = false;
const checkIfPresent = () => {
if (document.body.contains(element)) {
if (!present) {
console.log('in DOM:', element);
}
present = true;
} else if (present) {
present = false;
console.log('Not in DOM');
}
};
const observer = new MutationObserver(checkIfPresent);
observer.observe(document.body, { childList: true });
checkIfPresent();
return observer;
};
const element = document.querySelector('#element');
const add = () => document.body.appendChild(element);
const remove = () => element.remove();
trackElement(element);
<button onclick="add()">Add</button>
<button onclick="remove()">Remove</button>
<div id="element">Element</div>
we can use all these tags with onload
<body>, <frame>, <frameset>, <iframe>, <img>, <input type="image">, <link>, <script> and <style>
eg:
function loadImage() {
alert("Image is loaded");
}
<img src="https://www.w3schools.com/tags/w3html.gif" onload="loadImage()" width="100" height="132">
I really like the YUI3 library for this sort of thing.
<div id="mydiv"> ... </div>
<script>
YUI().use('node-base', function(Y) {
Y.on("available", someFunction, '#mydiv')
})
See: http://developer.yahoo.com/yui/3/event/#onavailable
This is very simple solution and 100% working.
Just load an <img> tag inside the div or at last line of div, if you think you want to execute javascript, after loading all data in div.
As <img> tag supports onload event, so you can easily call javascript here like below:
<div>
<img onLoad="alert('Problem Solved');" src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" />
</div>
This above image will show only a single Dot(.), which you even cant see normally.
Try it.
First to answer your question: No, you can't, not directly like you wanted to do so.
May be a bit late to answer, but this is my solution, without jQuery, pure javascript.
It was originally written to apply a resize function to textareas after DOM is loaded and on keyup.
Same way you could use it to do something with (all) divs or only one, if specified, like so:
document.addEventListener("DOMContentLoaded", function() {
var divs = document.querySelectorAll('div'); // all divs
var mydiv = document.getElementById('myDiv'); // only div#myDiv
divs.forEach( div => {
do_something_with_all_divs(div);
});
do_something_with_mydiv(mydiv);
});
If you really need to do something with a div, loaded after the DOM is loaded, e.g. after an ajax call, you could use a very helpful hack, which is easy to understand an you'll find it ...working-with-elements-before-the-dom-is-ready.... It says "before the DOM is ready" but it works brillant the same way, after an ajax insertion or js-appendChild-whatever of a div. Here's the code, with some tiny changes to my needs.
css
.loaded { // I use only class loaded instead of a nodename
animation-name: nodeReady;
animation-duration: 0.001s;
}
#keyframes nodeReady {
from { clip: rect(1px, auto, auto, auto); }
to { clip: rect(0px, auto, auto, auto); }
}
javascript
document.addEventListener("animationstart", function(event) {
var e = event || window.event;
if (e.animationName == "nodeReady") {
e.target.classList.remove('loaded');
do_something_else();
}
}, false);
I am learning javascript and jquery and was going through all the answer,
i faced same issue when calling javascript function for loading div element.
I tried $('<divid>').ready(function(){alert('test'}) and it worked for me. I want to know is this good way to perform onload call on div element in the way i did using jquery selector.
thanks
As all said, you cannot use onLoad event on a DIV instead but it before body tag.
but in case you have one footer file and include it in many pages. it's better to check first if the div you want is on that page displayed, so the code doesn't executed in the pages that doesn't contain that DIV to make it load faster and save some time for your application.
so you will need to give that DIV an ID and do:
var myElem = document.getElementById('myElementId');
if (myElem !== null){ put your code here}
I had the same question and was trying to get a Div to load a scroll script, using onload or load. The problem I found was that it would always work before the Div could open, not during or after, so it wouldn't really work.
Then I came up with this as a work around.
<body>
<span onmouseover="window.scrollTo(0, document.body.scrollHeight);"
onmouseout="window.scrollTo(0, document.body.scrollHeight);">
<div id="">
</div>
Link to open Div
</span>
</body>
I placed the Div inside a Span and gave the Span two events, a mouseover and a mouseout. Then below that Div, I placed a link to open the Div, and gave that link an event for onclick. All events the exact same, to make the page scroll down to bottom of page. Now when the button to open the Div is clicked, the page will jump down part way, and the Div will open above the button, causing the mouseover and mouseout events to help push the scroll down script. Then any movement of the mouse at that point will push the script one last time.
You could use an interval to check for it until it loads like this:
https://codepen.io/pager/pen/MBgGGM
let checkonloadDoSomething = setInterval(() => {
let onloadDoSomething = document.getElementById("onloadDoSomething");
if (onloadDoSomething) {
onloadDoSomething.innerHTML="Loaded"
clearInterval(checkonloadDoSomething);
} else {`enter code here`
console.log("Waiting for onloadDoSomething to load");
}
}, 100);
When you load some html from server and insert it into DOM tree you can use DOMSubtreeModified however it is deprecated - so you can use MutationObserver or just detect new content inside loadElement function directly so you will don't need to wait for DOM events
var ignoreFirst=0;
var observer = (new MutationObserver((m, ob)=>
{
if(ignoreFirst++>0) {
console.log('Element add on', new Date());
}
}
)).observe(content, {childList: true, subtree:true });
// simulate element loading
var tmp=1;
function loadElement(name) {
setTimeout(()=>{
console.log(`Element ${name} loaded`)
content.innerHTML += `<div>My name is ${name}</div>`;
},1500*tmp++)
};
loadElement('Michael');
loadElement('Madonna');
loadElement('Shakira');
<div id="content"><div>
You can attach an event listener as below. It will trigger whenever the div having selector #my-id loads completely to DOM.
$(document).on('EventName', '#my-id', function() {
// do something
});
Inthis case EventName may be 'load' or 'click'
https://api.jquery.com/on/#on-events-selector-data-handler
Here is a trick that worked for me,
you just need to put your div inside a body element
<body>
<!-- Some code here -->
<body onload="alert('Hello World')">
<div ></div>
</body>
<!-- other lines of code -->
</body>
Use the body.onload event instead, either via attribute (<body onload="myFn()"> ...) or by binding an event in Javascript. This is extremely common with jQuery:
$(document).ready(function() {
doSomething($('#myDiv'));
});
You cannot add event onload on div, but you can add onkeydown and trigger onkeydown event on document load
$(function ()
{
$(".ccsdvCotentPS").trigger("onkeydown");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.3/jquery.min.js"></script>
<div onkeydown="setCss( );"> </div>`
Try this.
document.getElementById("div").onload = alert("This is a div.");
<div id="div">Hello World</div>
Try this one too. You need to remove . from oQuickReply.swap() to make the function working.
document.getElementById("div").onload = oQuickReplyswap();
function oQuickReplyswap() {
alert("Hello World");
}
<div id="div"></div>
Is there a way to represent this code as plain vanilla Javascript so I can better understand how it works for now?
$("#id").click(function(){
var $x = $("#id");
$x.removeProp("-webkit-animation");
});
Essentially I'm using this to tell the code not to play a css animation given that a certain set of parameters are met.
removeProp removes properties of objects. If that’s definitely what you want, the equivalent is the delete operator:
var element = document.getElementById("id");
element.addEventListener("click", function () {
delete element["-webkit-animation"];
});
If what you really want to do is change a CSS property, though, it needs to be an operation on the element’s style:
element.style.WebkitAnimation = "none";
But what you should probably do is change a class instead:
element.classList.add("no-animation");
and use CSS:
.no-animation {
-webkit-animation: none;
}
The delete element is the somewhat equivalent on vanilla javascript of removeProp()
element = document.getElementById('id');
element.onclick() = function(){
delete element['-webkit-animation'];
}
Yes, you can use the .removeAttribute() function to remove an attribute, like style, title, etc.
Or you can use .removeProperty() to remove a style property (supported in IE9 and above)
Fiddle
(function() {
var myDiv = document.getElementById('myDiv');
myDiv.removeAttribute('style');
var aDiv = document.getElementById('aDiv');
aDiv.style.removeProperty('height');
})();
<div id="aDiv" style="background-color: green;">Hi</div>
<div id="myDiv" style="background-color: green;">Hi</div>
Hope it will help OP
JS
var element = document.getElementById("id");
element.onClick = function(){
this.style.removeProperty("-webkit-animation");
};