Get id Of Child Element JavaScript

In this tutorial we will learn how to Get id Of Child Element using JavaScript. HTML DOM Element children property can be used for this purpose which returns the child elements of a parent HTML element.

HTML Code

HTML Code is given below, in this code we have a parent element which is a div and we have a child element which is a paragraph tag. HTML button tag is also used with onclick event which will execute a JavaScript function to Get the id of child element.

<div id="parent">
   <p id="child">This is Child Element</p>
</div>    
<button onclick="getId()">Get Id</button>  

JavaScript Code

Take a look at the JavaScript code, the HTML DOM getElementById method, HTML DOM Element children property and id property is used in this code.

<script>
function getId()
{
const parent = document.getElementById('parent');
const child = parent.children;
const id = child[0].id;
alert(id);    
}
</script>

getElementById() Method

HTML DOM getElementById() Method is used to select or target HTML element by it's id.

In this example it is used to select the parent element.

HTML DOM Element children property

The children property returns the child elements of the parent HTML element.

id property

The id property sets or returns the id of specific element.

Demo

Video Tutorial

Watch video tutorial on Get id Of Child Element JavaScript.

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