如何检查二维数组是否包含字符串? [英] How to check if a two dimensional array includes a string?

问题描述

我有一个二维数组 arr [cols] [rows] .我想知道cols是否包含字符串"hello".如何使用 .includes("hello")方法进行检查.

I have a two dimensional array arr[cols][rows]. I want to know if the cols contains a string "hello". How can I check that using .includes("hello") method.

请注意，我正在尝试使用计数器 i 在循环中进行检查.所以我必须要做类似 arr [i] [0] .includes("hello");

Please note that I am trying to check this inside a loop with counter i. So I have to do something like arr[i][0].includes("hello");

推荐答案

您可以将 array.prototype.some 与 array.prototype.includes 一起使用.应该是:

You can use array.prototype.some along with array.prototype.includes. It shoud be:

var datas= [
  ["aaa", "bbb"],
  ["ddd", "eee"]
];

function exists(arr, search) {
    return arr.some(row => row.includes(search));
}

console.log(exists(datas, 'ddd'));
console.log(exists(datas, 'xxx'));

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