How to Use the JavaScript .map() Method

**How to Use the JavaScript .map() Method**

Introduction From the classic for loop to the forEach() method, there are many ways to iterate through data sets in JavaScript. One of the most popular options is the .map() method. The .map() method creates a new array by calling a function on every element of the original array and collecting the returned values. The .map() method is non-mutating, meaning it returns a new array without modifying the original array. This differs from mutating methods, which directly change the array they are called on...

---

**[devsupporter 해설]**

이 기사는 DigitalOcean에서 제공하는 최신 개발 동향입니다. 관련 도구나 기술에 대해 더 알아보시려면 원본 링크를 참고하세요.