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Javascript - Manipulate Strings

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Salam semua warga putera..

 

saya nak tanya logik nak manipulate strings.

 

contoh string:

var strA = "a$b$c";
var strB= "b$c";

soalan:macam mana nak cari perbezaan  strA & strB.

dalam contoh nih yang beza adalah 'a' selepas split.

 

contoh code yang tak berjaya:

var strA = "a$b$c";
var strB= "b$c";

var strArr01=strA.split('$');
var strArr02=strB.split('$');
var i;
var x;

for (i = 0; i < strArr01.length; i++) {
     alert(strArr01[i]);
     for (x = 0; x < strArr02.length; x++) {
          alert(strArr02[x]);
          if(strArr02[x]==strArr01[i]){
             break;
          }else if(strArr02[x]!==strArr01[i]){
             alert("S");
          }
     }   
}

dah pening fikir tak jumpa2..benda simple jer..huhuhu

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Tak sure sama ada ni best solution. Lama jugak tak main dengan javascript ni hehe boleh check sini cemana die behave http://jsfiddle.net/k28o5qrn/
 

var strA ="a$b$c";
var strB= "b$c";

var strFirst=strA.split('$');
var strSecond=strB.split('$');
var result =[];

for(var i = 0; i < strFirst.length; i++){
    if(strSecond.indexOf(strFirst[i]) < 0){
        result.push(strFirst[i]);
    }
}

if (result.length > 0){
        alert(result.toString());
}

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