jQuery change() method

jQuery Effect Methods

The change() method triggers the change event, or attach a function to be executed when the change event occurs.

A change event occurs when the content of a form element, selection, or selected state has changed (for <input>, <select>, and <textarea>).

Syntax:

Trigger the change event of the selected element:

$$(selector).change()

Attach the function to the change event:

$$(selector).change(function)

实例

alert(this.value);

Instance
　　$("input").change(function() {
"　";

alert(this.value);

Attach the function to the change event (the change event occurs when the content of the form element changes):
　　$(".demo").change(function() {
"　";

$("this").css("background", "coral");

Example
　　$("select").change(function() {
　　var str = "";
　　　　$("select option:selected").each(function() {　+str　+　= $(this).text()
　　"　";
　　});
$("div").text(str);

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jQuery Effect Methods