惯用方法集

常用方法集

// 使用正则表达式，判断参数是否为整数// 是整数就返回true，不是就返回falsefunction isInteger(char:String):Boolean{if(char == null){return false;}char = trim(char);var pattern:RegExp = /^[-\+]?\d+$/; var result:Object = pattern.exec(char);if(result == null) {return false;}return true;}// 去除参数中的前后空格function trim(char:String):String{if(char == null){return null;}return rtrim(ltrim(char));}function ltrim(char:String):String{if(char == null){return null;}var pattern:RegExp = /^\s*/; return char.replace(pattern,"");}function rtrim(char:String):String{if(char == null){return null;}var pattern:RegExp = /\s*$/; return char.replace(pattern,"");}