Tapas Adhikary • 7/8/2024

Why the with() method of JavaScript Array is a gem?

This article introduces the JavaScript Array with() method, a new addition in ECMAScript 2023 that allows developers to change an array element at a specific index without mutating the original array. It contrasts the traditional mutable approach (e.g., numbers[2] = 6) with the immutable with() method, which returns a new array copy with the change applied. The article covers parameters (index and value), supports negative indexing, and emphasizes the importance of immutability for predictable code. It also clarifies the difference from the deprecated with statement. Includes a video tutorial link.

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#JavaScript #array methods #array