ActionScript for Flash MX: The Definitive Guide, Second Edition

Array.unshift() Method

This is the Title of the Book, eMatter Edition

Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.

454

|

ActionScript Language Reference

Array.unshift() Method

add one or more elements to the beginning of an array

Flash 5

array.unshift(value1, value2,...valuen)

Arguments

value1, ...valuen

A list of one or more element values to be added to the beginning of array.

Returns

The new length of array.

Description

The unshift() method adds a series of elements to the beginning of an array. Elements are

added in the order specified. To add elements at the end of an array, use push().

Example

myList = new Array (5, 6);

myList.unshift(4); // myList becomes [4, 5, 6]

myList.unshift(7, 1); // myList becomes [7, 1, 4, 5, 6]

See Also

Array.push(), Array.shift(); “Adding Elements to an Array,” in Chapter 11

Boolean() Global Function

convert a value to the boolean datatype

Flash 5

Boolean(value)

Arguments

value An expression containing the value to be converted to a Boolean.

Returns

The result of converting value to a primitive Boolean (either true or false).

Description

The Boolean() global function converts its argument to a primitive Boolean value and

returns that converted value. The results of converting various datatypes to a primitive

Boolean are described in Table 3-3 in Chapter 3. It’s normally not necessary to use the

Boolean() function; ActionScript automatically converts values