You should use the .setAttribute() method:
g = document.createElement('div');
g.setAttribute("id", "Div1");
Bobby Hadz
bobbyhadz.com › blog › javascript-create-element-with-class
Create an Element with Classes or ID in JavaScript | bobbyhadz
Copied!<!DOCTYPE html> <html lang="en"> <head> <title>bobbyhadz.com</title> <meta charset="UTF-8" /> <style> .bg-yellow { background-color: yellow; } .text-lg { font-size: 2rem; } </style> </head> <body> <div id="box"></div> <script src="index.js"></script> </body> </html> ... And here is the related JavaScript code. ... Copied!// ✅ Create element const el = document.createElement('div'); // ✅ Add classes to element el.classList.add('bg-yellow', 'text-lg'); // ✅ Set ID attribute on the element el.setAttribute('id', 'my-id'); // ✅ Add text content to the element el.textContent = 'Hello world'; // ✅ Or set the innerHTML of the element // el.innerHTML = `<span>One, two, three</span>`; // ✅ add element to DOM const box = document.getElementById('box'); box.appendChild(el);
Quora
quora.com › Can-you-create-an-element-in-JS-with-an-ID-or-a-class
Can you create an element in JS with an ID or a class? - Quora
Answer (1 of 4): There are times you might want to dynamically generate elements on a page and add classes to style them. You can create elements with ids and/or classes with plain Javascript with the following commands: [code]var newElement = document.createElement(“div”); // to add a ...
javascript - Create Element with id or class with React Dom - Stack Overflow
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How to create html element using JavaScript and create class/id to it - Stack Overflow
I want to create html element using JavaScript and add class or id, so I can edit this element later. I know how to create element: More on stackoverflow.com
html - Add ID/class to objects from createElement method - Stack Overflow
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Javascript: How do I create element with id class and id which is some variable? Where I am not giving ID as some value but ID is equal to some variable More on stackoverflow.com
Top answer 1 of 9
823
You should use the .setAttribute() method:
g = document.createElement('div');
g.setAttribute("id", "Div1");
2 of 9
162
You can use g.id = 'desiredId' from your example to set the id of the element you've created.
Top answer 1 of 2
14
I would suggest you create it in a proper React way:
const App = () => {
return React.createElement(
"div",
{style:{color:"red"}, id: 'someId', className: "someClass"},
"Here I am",
);
};
ReactDOM.render(React.createElement(App), document.getElementById("root"));
2 of 2
3
The id and/or class of foo can be specified via the setAttribute(..) and classList.add(..) methods as shown:
const foo = document.createElement('div');
/* Set id of "some-id" on foo */
foo.setAttribute("id", "some-id");
/* Add class of "some-class" to foo */
foo.classList.add("some-class");
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › API › Document › createElement
Document: createElement() method - Web APIs | MDN
This creates a new <div> and inserts it before the element with the ID div1.
JavaScript Tutorial
javascripttutorial.net › home › javascript dom › javascript createelement() method
JavaScript document.createElement() By Practical Examples
January 18, 2020 - If you want to add an id to a div, you set the id attribute of the element to a value, like this: let div = document.createElement('div'); div.id = 'content'; div.innerHTML = '<p>CreateElement example</p>'; document.body.appendChild(div);Copy ...
HTML Dog
htmldog.com › guides › javascript › advanced › creatingelements
Creating Elements | HTML Dog
Creating elements using HTML tags isn’t the only way to do it — in fact it’s possible to create, modify and insert elements from JavaScript. Here’s an example that creates a div, adds some text to it and appends it as the last element in the body: var div = document.createElement('div'); div.textContent = "Sup, y'all?"; div.setAttribute('class', 'note'); document.body.appendChild(div); So document.createElement is used with an HTML tag to create the element.
Tutorial Reference
tutorialreference.com › javascript › examples › faq › javascript-how-to-create-an-element-with-id-and-classes
How to Create an Element with an ID and Classes in JavaScript | Tutorial Reference
For modern development, you should ... fundamental part of dynamic web development. Follow the three-step process: create (createElement), configure (set id, textContent, etc.), and append (appendChild)....
Top answer 1 of 3
1
You can do it like this:
<script>
let myP = document.createElement("p");
// If you need change CSS you can do it like:
myP.setAttribute("style", "color: red");
myP.id='myP-ID'
myP.className = 'myP-Class'
myP.innerHTML = "SomeText for my P tag";
document.body.appendChild(myP);
</script>
2 of 3
0
you can add class :
tag.classList.add("gg");
and you can add class and id :
tag.setAttribute("id", "ff");
tag.setAttribute("class", "bb");
Top answer 1 of 2
34
One way with Javascript, is by using setAttribute:
element.setAttribute(name, value);
Example:
var btn=document.createElement("BUTTON");
btn.setAttribute("id", "btn_id");
btn.setAttribute("class", "btn_class");
btn.setAttribute("width", "250px");
btn.setAttribute("data-comma-delimited-array", "one,two,three,four");
btn.setAttribute("anything-random", document.getElementsByTagName("img").length);
The advantage of this way is that you can assign arbitrary values to arbitrary names. https://developer.mozilla.org/en-US/docs/Web/API/element.setAttribute
2 of 2
11
You could assign to its property:
var btn=document.createElement("BUTTON");
btn.id = 'btn_id';
btn.className = 'btn_class';
Top answer 1 of 2
1
let id="theID", cls="MyClass"; // these are the "variables" ...
const div = document.createElement("div");
div.id=id; div.className=cls;div.textContent="This is the new div."
console.log(div.outerHTML); // preview of the created markup
document.body.append(div) 2 of 2
0
Do check DOM Manipulation of JavaScript methods:
document.createElement('tag or div');
document.querySelector('id or class');
document.querySelector('id or class').appendChild(htmlElement);
Top answer 1 of 2
71
Do div.classList.add
let div = document.createElement('div');
div.classList.add('test');
let text = document.createTextNode('Test');
div.appendChild(text);
document.body.appendChild(div).test {
color: green;
}You can also do by className
let div = document.createElement('div');
div.className = 'test';
let text = document.createTextNode('Test');
div.appendChild(text);
document.body.appendChild(div).test {
color: red;
} 2 of 2
8
You can use Element.classList.add
let div = document.createElement('div');
div.classList.add("myDiv")
GeeksforGeeks
geeksforgeeks.org › javascript › how-to-add-a-class-to-dom-element-in-javascript
How to Add a Class to DOM Element in JavaScript? - GeeksforGeeks
August 5, 2025 - <!DOCTYPE html> <html> <head> <style> .geekClass { background-color: green; text-align: center; font-size: 50px; } </style> </head> <body> <div id="gfg"> Geeks For Geeks </div> <button onclick="myClassName()">Add Class</button> <script> function myClassName() { let element = document.getElementById("gfg"); // Adding the class geekClass to element // with id gfg space is given in className // (" geekClass") as if there is already // a class attached to an element than our // new class won't overwrite and will append // one more class to the element element.className += " geekClass"; } </script> </body> </html> Output: Output · Comment · JavaScript Basics ·
W3Schools
w3schools.com › howto › howto_js_add_class.asp
How To Add a Class Name
<button onclick="myFunction()">Try it</button> <div id="myDIV"> This is a DIV element. </div> ... function myFunction() { var element = document.getElementById("myDIV"); element.classList.add("mystyle"); } Try it Yourself » · Tip: Also see How To Toggle A Class. Tip: Also see How To Remove A Class. Tip: Learn more about the classList property in our JavaScript Reference. Tip: Learn more about the className property in our JavaScript Reference. ... Coding fundamentals as bite-sized lessons and challenges.
OOZOU
oozou.com › home › til › how to create an html element with attributes in one line in javascript
How to Create an HTML Element with Attributes in One Line in JavaScript | TIL | OOZOU
October 13, 2020 - By doing this, you can streamline ... individually. ... Object.assign(document.createElement('a'), { id: 'id', class: 'whatever class', href: 'https://www.google.com/', innerHTML: 'This is a link' });...
CodeBrainer
codebrainer.com › home › how to createelement in javascript?
How to createElement in JavaScript? - CodeBrainer
July 16, 2024 - The first CSS is defined for the element with the id specialDiv (we define this with # in front of the id) and it makes fonts in this div red. This way it is apparent where a new element is created. If it is red, it was created inside specialDiv. Next is the CSS class colorBlue, all this class does is make the font color blue, again to make it apparent that we added a style using the createElement in JavaScript, followed by adding a CSS class to the new element..
SoftAuthor
softauthor.com › home › javascript › 3 ways to create html element in javascript
3 Ways To Create HTML Element In JavaScript - SoftAuthor
September 20, 2022 - A JavaScript object in which we can use any of the DOM properties such as id, innerHTML, etc. document.body.appendChild( Object.assign( document.createElement('div'), { id : 'box'} ) ) This is easier than the previous approach if we have a lot ...
Delft Stack
delftstack.com › home › howto › javascript › javascript create element with class
How to Create Element With Class in JavaScript | Delft Stack
March 13, 2025 - The document.createElement method is a fundamental part of the JavaScript DOM API. This method allows you to create a new HTML element specified by the tag name. Once created, you can manipulate the element by adding attributes, classes, and styles.
W3Schools
w3schools.com › jsref › met_document_createelement.asp
HTML DOM Document createElement() Method
document.createElement() is a DOM Level 1 (1998) feature. ... Coding fundamentals as bite-sized lessons and challenges. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: sales@w3schools.com · If you want to report an error, or if you want to make a suggestion, send us an e-mail: help@w3schools.com · HTML Tutorial CSS Tutorial JavaScript Tutorial How To Tutorial SQL Tutorial Python Tutorial W3.CSS Tutorial Bootstrap Tutorial PHP Tutorial Java Tutorial C++ Tutorial jQuery Tutorial
Reddit
reddit.com › r/learnjavascript › how can you create a new already styled element in javascript?
r/learnjavascript on Reddit: How can you create a new already styled element in javascript?
February 28, 2021 -
I created some code that creates a new p element/tag, like this:
var para = document.createElement("p");
var node = document.createTextNode(txt);
para.appendChild(node);
var element = document.getElementById("div1");
element.appendChild(para);But how can I style this new p? Is there a way to add an id to it, or to style it as it's created? Thanks
Top answer 1 of 3
8
u/Tailball has already said this, but figured I'd put it all in one place to avoid confusion. So if you have some CSS that says: .example { color: red; } and you create your element in javascript - you can style that element by giving it the css class that has the styles you want using the classList interface: // create your element const whatever = document.createElement("p"); // give it the CSS class to style it whatever.classList.add("example"); // add it to the page document.appendChild(whatever);
2 of 3
3
Element.classlist.add(x) Or element.setAttribute(‘id’, x) Where,of course, element is the tag you want to add your styling to.