javascript - 在字符串数组中查找最大的字符串

Question

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Answer 1

您可以使用 .reduce() 方法通过检查数组中每个字符串的 length 并返回具有更多字符的字符串来查找所需的字符串:

let test1 = ['a', 'aa', 'aaa'];
let test2 = ['asdf', 'qwer', 'zxcv'];
let test3 = ['asdfasdf fdasdf a sd f', ' asdfsdf', 'asdfasdfds', 'asdfsdf', 'asdfsdaf'];
let test4 = ['ddd','dddddddd','dddd','ddddd','ddd','dd','d','d','dddddddddddd'];

let reducer = (arr) => arr.reduce((r, c) => r.length >= c.length ? r : c);

console.log(reducer(test1));
console.log(reducer(test2));
console.log(reducer(test3));
console.log(reducer(test4));