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Microsoft® JScript™
slice Method (Array)
 Language Reference 
Version 3 

See Also                  Applies To


Description
Returns a section of an array.
Syntax
arrayObj.slice(start, [end])

The slice method syntax has these parts:

Part Description
arrayObj Required. An Array object.
start Required. The zero-based index of the beginning of the specified portion of arrayObj.
end Optional. The zero-based index of the end of the specified portion of arrayObj.
Remarks
The slice method returns an Array object containing the specified portion of arrayObj. It also works on strings: slice Method (String)

The slice method copies up to, but not including, the element indicated by end.

let array = [1, 2, 3, "hello world", 4.12, true];
array.slice(0, 3); // returns [1, 2, 3] but does NOT include array[3] "hello world"

If negative, end indicates an offset from the end of arrayObj. In addition, it is not zero-based. If omitted, extraction continues to the end of arrayObj.

In the example that follows, all but the last element of myArray is copied into newArray:

newArray.slice(0, -1))

If an object reference is copied from arrayObj to the result, the object reference in the result still points to the same object. Changes to that object are reflected in both arrays.


© 1997 by Microsoft Corporation. All rights reserved.


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