change() Method - Javascript jQuery Method and Property

Javascript examples for jQuery Method and Property:change

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jQuery change() Method

Description

The change() method triggers the change event, or sets a function as change event handler for <input>, <textarea> and <select> elements.

Syntax 

$(selector).change(function);
Parameter Description
function Optional. Specifies the function to run when the change event occurs for the selected elements

The following code shows how to Alert a text when an <input> field is changed:

Demo Code

ResultView the demo in separate window 

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
    $("input").change(function(){
        console.log("The text has been changed.");
    });//ww w. j  a va  2s . co  m
});
</script>
</head>
<body>

<input type="text">

<p>Write something in the input field, and then press enter or click outside the field.</p>

</body>
</html>

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