ActionScript for Flash MX: The Definitive Guide, Second Edition

String Class

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Alphabetical Language Reference

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described in Table 3-2 in Chapter 3. Normally it’s not necessary to use the String() func-

tion; ActionScript automatically converts values to the string type when appropriate.

Be sure not to confuse the String() global function with the String class constructor. The

former converts an expression to a string, whereas the later is a class that wraps primitive

string data in an object so that properties and methods can be applied to it.

Usage

Note that the String() function sometimes appears in Flash 4 .fla files that have been

converted to a later Flash format. For information on how datatypes are handled when

Flash 4 files are converted to Flash 5 or later, see “Flash 4–to–Flash 5 Datatype Conver-

sion” in Appendix C.

See Also

The String class; “Explicit Type Conversion,” in Chapter 3

String Class

wrapper class for string primitive type

Flash 5; performance enhanced in Flash 6

Constructor

new String(value)

Arguments

value An expression to be resolved and, if necessary, converted to a string, then

wrapped in a String object.

Properties

length The number of characters in a string.

Class Methods

The following method is invoked through the String class itself, not through an object of

the String class:

fromCharCode()

Generate a string from one or more ...