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Array Power, Part I
browser support

The table on this page lists the Array methods supported by each browser, and which of these are included in the ECMAScript Version 3 standard.

More information can be found on these sites:

Netscape: Client-Side JavaScript Reference

Microsoft: JScript Language Reference

ECMAScript: ECMAScript Language Specification

Method	Description	NS4+	IE4+	ECMA ver3
concat	Joins two arrays and returns a new array.
join	Joins all elements of an array into a string.
pop	Removes the last element from an array and returns that element.
push	Adds one or more elements to the end of an array and returns the new length of the array.
reverse	Transposes the elements of an array: the first array element becomes the last and the last becomes the first.
shift	Removes the first element from an array and returns that element
slice	Extracts a section of an array and returns a new array.
splice	Adds and/or removes elements from an array.
sort	Sorts the elements of an array.
toSource	Returns an array literal representing the specified array; can be used to create a new array.
toString	Returns a string representing the array and its elements.
unshift	Adds one or more elements to the front of an array and returns the new length of the array.
valueOf	Returns the primitive value of the array.

In order for Explorer to conform to ECMAScript version 3, it needs five new methods:

pop(), push(), shift(), splice() and unshift()

Our task is to create these methods for Explorer using the prototype property and the built-in methods available to us.

We'll start with unshift().

Produced by Peter Belesis and

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Created: April 26, 2000
Revised: April 26, 2000

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