trigger
UK[ˈtrɪgə(r)] US[ˈtrɪɡɚ]
n. (gun) trigger; starting device, trigger; triggering other events One thing; [Electronics] trigger, trigger electrical appliance
vt. trigger, trigger; pull the trigger of...; launch or cause explosion (weapons or explosive ammunition)
jquery trigger() method syntax
Function: trigger() method triggers the specified event type of the selected element.
Trigger event: Specifies the event to be triggered by the selected element.
Syntax: $(selector).trigger(event,[param1,param2,...])
Parameters:
| Parameters | Description |
| event | Required. Specifies the event to be triggered by the specified element. It is possible to make custom events (attached using the bind() function), or any standard events. |
| [param1,param2,...] | Optional. Additional parameters passed to the event handler. The extra parameters are especially useful for custom events. |
Use the Event object to trigger events: Specify the event to be triggered by the selected element using the event object.
Syntax: $(selector).trigger(eventObj)
Parameters:
| Parameter | Description |
| eventObj | Required. Specifies a function to run when an event occurs. |
jquery trigger() method 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(){
$("input").select(function(){
$("input").after("文本被选中！");
});
$("button").click(function(){
$("input").trigger("select");
});
});
</script>
</head>
<body>
<input type="text" name="FirstName" value="Hello World" />
<br />
<button>激活 input 域的 select 事件</button>
</body>
</html>Click the "Run instance" button to view the online instance