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Javascript function restriction code

Source: Internet
Author: User
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Function:

Copy codeThe Code is as follows:
Function throttle (fn, MS ){
Var last = (new Date (). getTime ();
Return (function (){
Var now = (new Date (). getTime ();
If (now-last> MS ){
Last = now;
Fn. apply (this, arguments );
}
});
}

Fn: Input Function/Method
Parameter ms: The interval (in milliseconds) of each function call. If the input is 2000, the function will not be repeatedly triggered within 2 seconds.

Appendix 1 initialization example

Copy codeThe Code is as follows:
Document. getElementById ('pop'). onclick = throttle (function (){
Alert (this. id );
}, 2000)


The scope is set to the caller.
Fn. apply (this, arguments );

Examples
<! DOCTYPE html> <ptml xmlns = "http://www.w3.org/1999/xhtml"> <HEAD> <TITLE> New Flowers </TITLE> </HEAD> <style type = 'text/css '> # pop {width: 100px; height: 100px; background: # ccc ;}</style> <BODY> the virtual space is waiting </BODY> </HTML>
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]

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