jQuery focus() Method
jQuery focus() is an inbuilt method that is used to focus on an element. The element gets focused by the mouse click or by the tab-navigating button.
Syntax:
$(selector).focus(function)
Here selector is the selected element.
Parameter: It accepts an optional parameter in the form of a callback function which will be called once the focus event occurs.
Example 1: The below example explains the focus() method with a callback function passed to it.
HTML
<!DOCTYPE html><html><head> <style> span { display: none; } body { width: 35%; height: 50px; border: 2px solid green; padding: 35px; margin: 10px; } </style> <script src="https://code.jquery.com/jquery-1.10.2.js"> </script></head><body> <!-- this paragraph element get focused --> <p> <input type="text"> <span>focused</span> </p> <!-- jQuery code to show working of this method --> <script> $("input").focus(function () { $(this).next("span").css( "display", "inline"); }); </script></body></html> |
Output:
Example 2: In the below example, the focus() method is invoked without any parameters.
HTML
<!DOCTYPE html><html><head> <style> span { display: none; } body { width: 30%; height: 50px; border: 2px solid green; padding: 35px; margin: 10px; } </style> <script src="https://code.jquery.com/jquery-1.10.2.js"> </script></head><body> <!-- this paragraph element get focused --> <p> <input type="text"> <span>focused</span> </p> <!-- jQuery code to show working of this method --> <script> $("input").focus(); </script></body></html> |
Output:
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