JZTXT

拿出重复的数

发布时间 2023-04-05 15:58:08作者: hqingxiang
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<title>Document</title>
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<script>
    //将数组中重复的数据剔除，保存到新数组中
    var arr = [1, 2, 3, 4, 5, 1, 2, 4];
    var str = [];
    for (var i = 0; i < arr.length; i++) {
        if (str.indexOf(arr[i]) == -1) {
            str.push(arr[i]);
        }
    }
    console.log(str);
</script>
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