The jquery map method is used as an example

  • 2020-03-30 02:42:48
  • OfStack

JQuery. Map (array, callback(elementOfArray, indexInArray))

Returns: an Array

Feel the jquery map method is very useful, I would like to share with you.

Method replaces an array or a single object with new content.
Example of an application: get a set of checkbox values, separated by English commas, and splice them.

 
<html> 
<head> 
<script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
<script> 
$(function(){ 
$("input").click(function(){ 
var str = $(":checked").map(function(){ 
return this.value; 
}).get().join(",") 
$("span").html(str); 
}) 
}) 
</script> 
</head> 
<body> 
<input type="checkbox" value="a"/>a 
<input type="checkbox" value="b"/>b 
<input type="checkbox" value="c"/>c 
<br/> 
 Results: <span/> 
</body> 
</html> 

In CSDN code editor, dare not flatter really, I'm jsFiddle created the above example, attached to the link: http://jsfiddle.net/dV8eh/.

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