[JavaScript] Code Skill

in Devlog on JavaScript, Devlog, Code, Skill



배열

두개 배열이 있을 때

let arr1 = [1, 2, 3];
let arr2 = [2, 3, 4, 5];
  1. 차집합
let difference = arr1.filter((x) => !arr2.includes(x)); // 결과 1
  1. 교집합
let difference = arr1.filter((x) => arr2.includes(x)); // 결과 2, 3
  1. 배타적 논리합
let difference = arr1.filter(x => !arr2.includes(x)).concat(arr2.filter(x => !arr1.includes(x)));