用动作脚本修剪字符串3

Question

我试图从一个字符串的前端和末尾修剪空格。看起来像as3没有修剪功能。任何人都知道如何做到这一点？

Answer 1

看http://jeffchannell.com/ActionScript-3/as3-trim.html

function trim(s:String):String 
{ 
    return s.replace(/^([\s|\t|\n]+)?(.*)([\s|\t|\n]+)?$/gm, "$2"); 
} 

http://www.designscripting.com/2008/11/string-utils-in-as3/有一吨的字符串实用功能，其中包括字符串修剪

Answer 2

您应该能够使用正则表达式，像：

var pattern:RegExp = /(\t|\n|\s{2,})/g; 
trimmedString = untrimmedString.replace(pattern, ''); 

Answer 3

你有没有检查Adobe的文档？ http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/String.html

package { 
import flash.display.Sprite; 

public class StringExample extends Sprite { 
    public function StringExample() { 
     var companyStr:String = new String("  Company X"); 
     var productStr:String = "Product Z Basic  "; 
     var emptyStr:String = " "; 
     var strHelper:StringHelper = new StringHelper(); 

     var companyProductStr:String = companyStr + emptyStr + productStr; 
     trace("'" + companyProductStr + "'"); // '  Company X Product Z Basic  ' 

     companyProductStr = strHelper.replace(companyProductStr, "Basic", "Professional"); 
     trace("'" + companyProductStr + "'"); // '  Company X Product Z Professional  ' 

     companyProductStr = strHelper.trim(companyProductStr, emptyStr); 
     trace("'" + companyProductStr + "'"); // 'Company X Product Z Professional' 
    } 
} 

}

类的StringHelper {

public function StringHelper() { 
} 

public function replace(str:String, oldSubStr:String, newSubStr:String):String { 
    return str.split(oldSubStr).join(newSubStr); 
} 

public function trim(str:String, char:String):String { 
    return trimBack(trimFront(str, char), char); 
} 

public function trimFront(str:String, char:String):String { 
    char = stringToCharacter(char); 
    if (str.charAt(0) == char) { 
     str = trimFront(str.substring(1), char); 
    } 
    return str; 
} 

public function trimBack(str:String, char:String):String { 
    char = stringToCharacter(char); 
    if (str.charAt(str.length - 1) == char) { 
     str = trimBack(str.substring(0, str.length - 1), char); 
    } 
    return str; 
} 

public function stringToCharacter(str:String):String { 
    if (str.length == 1) { 
     return str; 
    } 
    return str.slice(0, 1); 
} 

}

更新：哦，刚才看到ItzWarty。 -.-

Answer 4

str = str.replace(/^\s+|\s+$/g, ''); 

Answer 5

您有一个就是所谓的实用类装饰叫做StringUtil =>http://livedocs.adobe.com/flex/3/langref/mx/utils/StringUtil.html#trim%28%29

Answer 6

ItzWarty的解决方案不会删除尾随空格方法。

Amargosh的解决方案对我来说确实很完美，并且也在http://jeffchannell.com/ActionScript-3/as3-trim.html。

不幸的是我没有足够的声望来投票给Amargosh的解决方案。

此外，我不得不删除双引号所以这里是我的装饰：

function trim(s:String):String 
{ 
    return s.replace(/^[\s|"]+|[\s|"]+$/gs, ''); 
} 

Answer 7

试试这个

str = StringUtil.trim(str);