function arrHasvalue(arr) {
        var nary = arr.sort();
        for (var i = 0; i < arr.length; i++) {
            if (nary[i] == nary[i + 1]) {
                // console.log("数组重复内容:" + nary[i]);
                return true;
            }else{
                return false;
            }
        }
    }

  

var ary = new Array("111", "22", "33", "111");
console.log(arrHasvalue(ary)); //true

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