ActionScript: conversion to Boolean

Categories: Flex; Tagged with: ActionScirpt • ApacheFlex; @ February 27th, 2012 19:46

The following table summarizes the results of casting to the Boolean data type from other data types:

Data type or value	Result of conversion to Boolean
String	`false` if the value is `null` or the empty string ( `“”` ); `true` otherwise.
null	false
Number, int or uint	`false` if the value is `NaN` or 0; `true` otherwise.
Object	`false` if the instance is `null` ; `true` otherwise.

Note: when you convert a string to boolean, remeber to trim the string first.

and this is a capture from <<Essential ActionScript 3.0>>: