Javascript Create Element Method

You may have heard of the javascript create element method before, but do you know what it does? The javascript createElement() method creates an Element Node with the specified name. This is a powerful javascript function that can be used to dynamically generate new HTML elements and attributes. In this article, we will learn more about how this javascript function works!

How does javascript create element works:

The javascript createElement() method creates an Element Node with the specified name. This javascript function has been around for a while, but it’s had some recent updates to bring it up to speed with modern javascript frameworks. We will be looking at just how this javascript function works in this article!

With the document.createElement() method, you can create any HTML element that is recognized by your browser and it will display on screen! The only drawback here is that not every tag name has this function associated with them so if there’s a specific one in mind then be sure to research before beginning work- otherwise use something from Google as they are pretty standard across all browsers now.

Syntax:

document.createElement(tagName);

Example:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>JS CreateElement Demo</title>
</head>
<body>
    <script>
        let div = document.createElement('div');
        document.body.appendChild(div);
    </script>
</body>
</html>

So the above javascript code is an example of how the javascript create Element method works! When this javascript function is executed, a new Element node will be created with the specified name(div). Once it’s created, it can be appended to any element in the DOM.

what is the appendChild work?

The appendChild javascript function is a javascript function that appends a child node to the specified parent node. This javascript function can be executed on any javascript object and one of the most common forms is document.body.appendChild(node).

By executing the javascript createElement method, a new Element node will be created with the specified name in this case “div”. Once it’s created, it can be appended to any element in your DOM tree.

How to set an attribute to created element?

HTML element attributes are set by using the “setAttribute” javascript function. For example:

let div = document.createElement('div');
div.setAttribute('style', 'color:red'); 

The above javascript code will create a div element and set its style to color: red.

How to set text to created element?

Setting the javascript createElement text is done by using javascript’s “appendChild” javascript function. For example, let’s say you created a div and want to set its text to Hello World!

The innerHTML

let div = document.createElement('div');
div.setAttribute('style', 'color:red'); 
document.body.appendChild(div); 
div.innerHTML= "Hello World!"; 

The above javascript code will create a div element with a red style and set its text to “Hello World”.

We could use javascript’s innerHTML to set a node’s text. This javascript function does not need to be appended to any element- it can be executed on any javascript object. For example, let’s say we wanted to set the text of our created div above to Hello World!

The javascript createElement method is a powerful javascript function that can be used to dynamically generate new HTML elements and attributes.

The creatextnode method

We can also use javascript’s creatextnode javascript function to dynamically generate text. This javascript function is similar to the javascript create element but it does not have any browser limitations. The javascript creatextnode method is a powerful javascript function that utilizes ECMAScript’s object initializer syntax for declaring the text to an HTML element.

<!DOCTYPE html>
<html lang="en">
<head>
<title>createTextNode example</title>
<script>
function addTextNode(text) {
  var newtext = document.createTextNode(text),
      p1 = document.getElementById("p1");

  p1.appendChild(newtext);
}
</script>
</head>

<body>
  <button onclick="addTextNode('YES! ');">YES!</button>
  <button onclick="addTextNode('NO! ');">NO!</button>
  <button onclick="addTextNode('WE CAN! ');">WE CAN!</button>

  <hr />

  <p id="p1">First line of paragraph.</p>
</body>
</html>

Conclusion:

The Javascript create element method is a powerful way to add new HTML elements and attributes dynamically into the DOM. It can be used in any browser, but it’s especially useful when you want to override or extend an existing page template with custom content. Learn more about this awesome JavaScript API by reading our blog post on What Is the Javascript Create Element Method?

Also read: JavaScript Generate Random String

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