Web API DOMRect left property

Last Updated : 15 Jun, 2023

In Web API there is a DOMRect Interface which has a property left that gives us the left of the DOMRect object. It returns the x coordinate value or if the width is negative then it returns x + width.

Syntax:

let recX = DOMRect.left;

Return Type:

Double value

Example 1: When the width is positive

HTML

<!DOCTYPE html>
<html>

<head>
    <title>
        DOMRect left property
    </title>
</head>

<body>
    <h1 style="color:green;">
        GeeksForGeeks
    </h1>
    <h2>DOMRect left property</h2>
    <button onclick="getDOMRect ();">
        Get left
    </button>
    <p id='DOMRect'></p>
  
    <script type="text/javascript">
        function getDOMRect() {
            let myDOMRect = new DOMRect(0, 0, 100, 100);
            let recleft = myDOMRect.left;
            document.getElementById(
                'DOMRect').innerHTML = recleft;
        }
    </script>
</body>

</html>

Output:

Example 2: When the width is negative

HTML

<!DOCTYPE html>
<html>
  
<head>
    <title>
        DOMRect left property
    </title>

</head>

<body>
    <h1 style="color:green;">
        GeeksForGeeks
    </h1>
    <h2>DOMRect left property</h2>
    <button onclick="getDOMRect ();">
        Get left
    </button>
    <p id='DOMRect'></p>
  
    <script type="text/javascript">
        function getDOMRect() {
            let myDOMRect = new DOMRect(0, 0, -100, 100);
            let recleft = myDOMRect.left;
            document.getElementById(
                'DOMRect').innerHTML = recleft;
        }
    </script>
</body>
  
</html>