change
UK[tʃeɪndʒ] US[tʃendʒ]
vt. Change, change; exchange, replacement; exchange; change clothes (sheets)
vi.Change, change; exchange, exchange; change clothes, change clothes
n.Change, change; exchange, alternation; change, change; substitute
jquery change() function syntax
Function:When the value of an element changes, a change event occurs. This event only applies to text fields, and textarea and select elements. The change() function triggers a change event, or specifies a function to run when a change event occurs. When used on a select element, the change event occurs when an option is selected. When used with a text field or text area, this event occurs when the element loses focus.
Trigger change event: Trigger the change event of the selected element.
Syntax: $(selector).change()
Bind the function to the change event: Specifies when selected A function that runs when the element's change event occurs.
Syntax: $(selector).change(function)
Parameters:
| Parameter | Description |
| function | Optional. Specifies the function to run when the change event occurs. |
jquery change() function example
<html>
<head>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(".field").change(function(){
$(this).css("background-color","#FFFFCC");
});
});
</script>
</head>
<body>
<p>在某个域被使用或改变时，它会改变颜色。</p>
Enter your name: <input class="field" type="text" />
<p>Car:
<select class="field" name="cars">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="fiat">Fiat</option>
<option value="audi">Audi</option>
</select>
</p>
</body>
</html>Click the "Run instance" button to view the online instance