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mat
Asked:2022-04-28 23:30:12 +0000 UTC2022-04-28 23:30:12 +0000 UTC

js过滤器（）函数

  • 772

function filtterByThanos(items) {
    return items.filter();
}

const posts = [1,2,3,4,5,6];


const filtered = filtterByThanos(posts);
console.log(filtered);

当您单击哪一半搜索结果从页面中消失时。您需要做同样的事情 - 即，编写一个函数，该函数将数组作为输入并返回一个新数组，该数组仅包含第一个数组中具有奇数索引的元素。

javascript

2 个回答

  1. Best Answer
    function filterByThanos(items) {
    return items.filter((item, index) => index % 2 !== 0);
}

const posts = [1,2,3,4,5,6];


const filtered = filterByThanos(posts);
console.log(filtered);


    function filterByThanos(items) {
    return items.filter((item, index) => index % 2 !== 0);
}

const posts = [1,2,3,4,5,6];


const filtered = filterByThanos(posts);
console.log(filtered);

    • 3

  2. 它可以更短，我使用了关于 Apollo 的答案

    const filterByThanos =(а)=>а.filter((_,i) => i%2);


const posts = [1,2,3,4,5,6];


const filtered = filterByThanos(posts);
console.log(filtered);

    • 1

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