map

英[mæp] 美[mæp]

n. Map, celestial map; something similar to a map; face , face; genetic map (arrangement of genes on chromosomes)

vt. draw (a region, etc.) map; survey; detailed planning; [genetics] comparison

jquery map() method syntax

Function: map() passes each element to the current matching collection through the function and generates a new jQuery object containing the return value.

Syntax: .map(callback(index,domElement))

##Parameters:

ParametersDescriptioncallback(index,domElement)The function object called for each element in the current collection .

Note: Since the return value is an array encapsulated by jQuery, use get() to process the returned object to get the underlying array.

jquery map() method example

<!DOCTYPE html>
<html>
<head>
  <style>p { color:red; }</style>
  <script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
</head>

<body>
  <p><b>Values: </b></p>
  <form>
    <input type="text" name="name" value="John"/>
    <input type="text" name="password" value="password"/>
    <input type="text" name="url" value="http://php.cn/"/>
  </form>

<script>
    $("p").append( $("input").map(function(){
      return $(this).val();
    }).get().join(", ") );
</script>

</body>
</html>
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