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陣列中去掉分割字串以及去重

//將陣列中的帶逗號的元素分割,如["A,B,C","A","A,B","C"]變為["A","B","C"]
	var roleA = new Array();
	var roleB = new Array();
	for(var i in roleInfo){
		if(roleInfo[i].indexOf(",")!=-1){
			
		roleB=	roleInfo[i].split(",");
			for(var j in roleB){
				roleA.push(roleB[j]);
			}
		}else{
			roleA.push(roleInfo[i]);
		}
}
var roleC = first(roleA); for(var i in roleC){ $('#remark').append('<label><input name="'+roleC[i]+'" type="checkbox" />'+roleC[i]+'</label>'); } //去掉陣列中重複的資料 var str1=[]; function first(args){ for(var i=0;i<args.length;i++){ if(str1.indexOf(args[i])<0){
str1.push(args[i]) } } return str1; }