Javascript Window Blur() and Window Focus() Method

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Javascript Window Blur() method is used to remove focus from the current window. i.e, It sends the new open Window to the background.

Syntax:

Window.blur()

Parameter: It does not require any parameters.

Return Value: It does not return any value.

Below examples illustrate the window.blur() method of JavaScript:

Example: The below example illustrates the window.blur() method in JavaScript:

HTML

<!DOCTYPE html>
<html lang="en">
 
<head>
    <title> window.blur() method of JavaScript</title>
</head>
 
<body>
    <h1 style="color: green">zambiatek</h1>
    <h2>JavaScript window.focus() Method</h2>
    <script>
        let Window;
 
        // Function that open the new Window
        function windowOpen() {
            Window = window.open(
                "https://www.zambiatek.com/",
                "_blank", "width=400, height=450 top=75");
        }
 
        // function that Closes the open Window
        function windowClose() {
            Window.close();
        }
 
        //function that focus on open Window
        function windowFocus() {
            Window.focus();
        }
    </script>
    <button onclick="windowOpen()">
        Open zambiatek
    </button>
    <button onclick="windowFocus()">
        Focus zambiatek
    </button>
    <button onclick="windowClose()">
        Close zambiatek
    </button>
</body>
</html>

Output: If click on the blur zambiatek button then the zambiatek.com page will move to the background

Javascript Window.focus() method is used to focus on the new open window. i.e bringing back the blurred window to the foreground.

Syntax:

window.focus()

Parameter: It does not require any parameters.

Return Value: It does not return any value.

Example: The example below illustrates the window.focus() method in javascript.

HTML

<!DOCTYPE html>
<html lang="en">
 
<head>
    <title> window.blur() method of JavaScript</title>
</head>
<body>
    <h1 style="color:green" class="gfg">zambiatek</h1>
    <h2>Focus</h2>
    <script>
        let Window;
 
        // Function that open the new Window
        function windowOpen() {
            Window = window.open(
                "https://www.zambiatek.com/",
                "_blank", "width=400, height=450 top=75");
        }
 
        // function that Closes the open Window
        function windowClose() {
            Window.close();
        }
 
        //function that focus on open Window
        function windowFocus() {
            Window.focus();
        }
    </script>
    <button onclick="windowOpen()">
        Open zambiatek
    </button>
    <button onclick="windowFocus()">
        Focus zambiatek
    </button>
    <button onclick="windowClose()">
        Close zambiatek
    </button>
</body>
</html>

Output: if click on the focus zambiatek button then the zambiatek.com windows will come to the foreground.

Supported Browser: The browser is supported by Window Blur() and Window Focus() Methods are listed below:

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

We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.