Web API | DOMRect left property

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

Syntax:

var recX = DOMRect.left;

Return Type:



Double value

Example 1: When the width is positive

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

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Output:
Before clicking the button:

After clicking the button:

Example 2: When the width is negative

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close

play_arrow

link
brightness_4
code

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

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Output:
Before clicking the button:

After clicking the button:

Supported Browsers: The browsers supported by DOMRect left property are listed below:

  • Google Chrome
  • Safari 10.1
  • Firefox
  • Opera


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