HTML DOM Window resizeBy() Method

The resizeBy() method in HTML Window is used to resize a window by the specified amount, relative to its current size.

Syntax:

resizeBy(width, height)

property value:

width: A that specifies the resize pixels of width.
height: A that specifies the resize pixels of height.

Example:

html

<!DOCTYPE html>
<html>

<head>
    <title>
      Window resizeBy() Method
  </title>
    <style>
        h1 {
            color: green;
        }
    </style>
</head>

<body>
    <center>
        <h1>
          Geeks for Geeks
      </h1>
        <button onclick="openWin()">
          New window
      </button>
        <button onclick="resizeWin()">
          Resize window
      </button>

        <script>
            var myWindow;

            function openWin() {
                myWindow = 
                  window.open("", "",
                              "width=100, height=100");
            }

            function resizeWin() {
                myWindow.resizeBy(300, 300);
                myWindow.focus();
            }
        </script>
    </center>
</body>

</html>

Output:

Before:

After:

Supported Browsers: The browser supported by Window resizeBy() Method are listed below:

Google Chrome 1
Internet Explorer 4
Mozilla Firefox 1
Edge 12
Opera 12.1
Safari 1

HTML DOM Window resizeBy() Method

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