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一些强大的 Js 单行代码
Javascript 是当今世界最强大的语言之一。在本文中，我们将介绍一些有用的 js 单行代码。
删除数组中的重复项。
const array = [12, 23, 54, 69, 4, 12, 23];
console.log(array); // [12, 23, 54, 69, 4, 12, 23]
const RemoveDuplicates = (arr) => [...new Set(arr)];
console.log(RemoveDuplicates(array)); // [12, 23, 54, 69, 4]
生成随机 ID
const randomId = Math.random().toString(36).substring(2);
console.log(randomId); // ituzp41cq08
随机排列数组
const alpha = ["A", "B", "C", "D", "E", "F"];
console.log(alpha); // ["A", "B", "C", "D", "E", "F"]
console.log(alpha.slice().sort(() => Math.random() - 0.5)); // ["B", "A", "C", "E", "F", "D"]
交换两个变量
let a = 10;
let b = 5;
console.log(a, b); // 10 5
[a, b] = [b, a];
console.log(a, b); // 5 10
分配多个变量
let [x, y, z, w] = [4, 0.5, "Ajith", ["a", "b"]];
console.log(x, y, z, w); //4 0.5 "Ajith" ["a", "b"]
反转字符串
const reverseString = (arr) => arr.split("").reverse().join("");
console.log(reverseString("I love to code in javascript")); //tpircsavaj ni edoc ot evol I
合并多个数组
const languages = ["js", "c", "go", "java"];
const frameworks = ["react", "angular", "ruby on rails", "larvel"];
const combined = languages.concat(frameworks);
console.log(combined); //["js", "c", "go", "java", "react", "angular", "ruby on rails", "larvel"]