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How to use slice method

不言Original: 2019-01-29 15:23:0810174browse

slice() is a method of all array instances in How to use slice method. It can return selected elements from an existing array. It has two parameters begin and end, both of which are optional. Let’s take a look below. Specific content.

Let’s take a look at the basic syntax of the slice() method

array.slice( begin [,end] );

begin: An integer used to specify the starting position of the selection ( The index of the first element is 0). You can use negative values to select from the end of the array. If omitted, the default value is "0" and is optional.

end: End the index obtained from zero.

Let’s look at a specific example

The code is as follows

<!DOCTYPE html>
<html>
<head>
	<title></title>
</head>
<html>
   <head>
      <title>How to use slice method Array slice Method</title>
   </head>
   <body>   
      <script type = "text/javascript">
         var arr = ["orange", "mango", "banana", "sugar", "tea"];
         document.write("arr.slice( 1, 2) : " + arr.slice( 1, 2) ); 
         document.write("<br />arr.slice( 1, 3) : " + arr.slice( 1, 3) ); 
      </script>      
   </body>
</html>       
</body>
</html>

The running results are as follows

How to use slice method

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