JavaScript window.resizeBy() Method
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JavaScript window.resizeBy() Method
The window.resizeBy() method resizes the current window by a specified amount relative to its current size.
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<button onclick="myOpen()">Open Window</button>
<button onclick="myResizeBy()">ResizeBy Window</button>
<script>
var myWindow;
function myOpen(){
myWindow = window.open("","myWindow","width=100, height=150");
}
function myResizeBy(){
myWindow.resizeBy(50, 75);
myWindow.focus();
}
</script>
</body>
</html>
Syntax
window.resizeBy(width, height)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| width | Required | The number of pixels to grow the window horizontally. |
| height | Required | The number of pixels to grow the window vertically. |
resizeBy() vs resizeTo()
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<button onclick="myOpen()">Open Window</button>
<button onclick="myResizeBy()">ResizeBy Window</button>
<button onclick="myResizeTo()">ResizeTo Window</button>
<script>
var myWindow;
function myOpen(){
myWindow = window.open("","myWindow","width=100, height=150");
}
function myResizeBy(){
myWindow.resizeBy(50, 75);
myWindow.focus();
}
function myResizeTo(){
myWindow.resizeTo(400, 400)
myWindow.focus();
}
</script>
</body>
</html>
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