TypeScript Array map() vs flatMap(): Whats’s Difference?

Date: 2023-11-27

TypeScript's map() and flatMap() methods offer efficient array manipulation. map() transforms each array element using a callback function, returning a new array of the same length. flatMap() performs a similar transformation but flattens the resulting array, handling nested arrays. flatMap() is ideal for one-to-many transformations, while map() suits one-to-one operations. Choosing between them depends on the specific transformation needed, with both enhancing code readability and conciseness.

Read more: https://examples.javacodegeeks.com/typescript-array-map-vs-flatmap/