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javascript,去除阵列中相同的物品
原标题:javascript, remove identical items from array

我用一个灯塔,用一个表格的灯塔。

当表格装上时,请上var first =美元(表)。

表格提交时:var final = 美元(表)。

which gives me two arrays of objects, What I now want to do is compare each object in the arrays and remove those that have not changed.

how would I do this?

最佳回答

我假定这两个阵列的长度将相等,这两个阵列的内容将按同一顺序排列。 在此情况下,你需要做的是研究第一阵列的每一部分,将其与第二阵列的相应部分进行比较;如果与这两阵列相匹配,则将这一位置的要素从两个阵列中删除。

如同这项工作一样(尽管我已经进行过检测):

var i = 0;
while (i < initial.length) {
    if(initial[i] == final[i]) {
        initial.splice(i,1);
        final.splice(i,1);
    }
    else {
        i++;
    }
}
问题回答

我认为这样做的最快方式

var len = initial.length, i=0, changed=[];
/* I hope initial.length==final.length*/

    for(i; i<len; i++){
        /* 0==    */
        if (initial[i]===final[i])
           changed[i] = final[i];
    }

/现在

changed

我把问题混为一谈。

是否调整指数?





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