9个 JavaScript 单行代码提升你的编程水平

let a = 1, b = 2;[a, b] = [b, a];// Result: a = 2, b = 1

const { name, age } = { name: 'John', age: 23 };// Result: name = 'John', age = 23

const originalObj = { name: 'John', age: 24 };const clonedObj = { ...originalObj };// Result: clonedObj = { name: 'John', age: 24 }// Modifying clonedObj won't affect originalObj

const obj1 = { name: 'John' };const obj2 = { age: 22 };const mergedObj = { ...obj1, ...obj2 };// Result: mergedObj = { name: 'John', age: 22 }

const arr = [ 0, 1, false, 2, '', 3 ];const cleanedArray = arr.filter(Boolean);// Result: cleanedArray = [1, 2, 3]

const nodesArray = [ ...document.querySelectorAll('div') ];

const arr = [ 1, 2, 3, -5, 4 ];const hasNegativeNumbers = arr.some(num => num < 0); // Result: hasNegativeNumbers = true
const allPositive = arr.every(num => num > 0);// Result: allPositive = false

navigator.clipboard.writeText('Text to copy');

const arr = [1, 2, 2, 3, 4, 4, 5];const unique = [...new Set(arr)];// Result: unique = [1, 2, 3, 4, 5]