var content = "12345,abcde";
var num = content.substring(0,5);//12345
var letter = content.substring(7,11);//abcde
var i = content.indexof(","); //6
var data = content.substring(i+1,content.length);//abcde
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var content = "12345,abcde";
var num = content.substring(0,5);//12345
var letter = content.substring(7,11);//abcde
var i = content.indexof(","); //6
var data = content.substring(i+1,content.length);//abcde
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