字符串去重的一个实例分享

  
    var str = "aabdeegdcffdsf",
        result = [],
        tempStr = "";
    var removeDuplicate = function ( str ){
        var arr = str.split('');//把字符串分割成数组
        //arr.sort();//排序
        for(var i = 0; i < arr.length; i++){
            if(arr[i] !== tempStr){
                result.push(arr[i]);
                tempStr = arr[i];
            }else{
                continue;
            }
        }
        return result.join("");
    }
    console.log(removeDuplicate(str)); //abdegdcfdsf

var removeDuplicate = function ( str ){        var arr = str.split('');//把字符串分割成数组        //arr.sort();//排序        for(var i = 0; i <arr.length; i++){            if(tempStr.indexOf(arr[i])>=0){continue;                console.log(1)            }else{//console.log(2)                result.push(arr[i]);
                tempStr+=arr[i];console.log(tempStr);            }        }        return result.join("");    }

试了一下，运行结果如下：abdegcfds