What advantages does leveraging built-in functions offer when working with callbacks in JavaScript?

When it comes to array built-in functions, such as reduce and map, the main advantage is the ability to chain them together.

For example, let's say you want to find the sum of elements in an array:

const array = [1, 2, 3];

Aside from chaining methods, is there any other benefit to using:

const sum = array.reduce((prev, next) => prev + next, 0)

instead of a traditional for loop like this:

let sum = 0;
for (let i = 0; i < array.length; i++) sum += array[i];

What do you think?

Answer №1

Utilizing the functions already provided such as reduce and map encourages you to approach your code in a more functional manner. Essentially, the reduce function involves looping through data to achieve a specific outcome, but each built-in function serves a unique purpose. In contrast, loops are versatile and can be applied to various tasks.

Here is a comprehensive list of array methods, each serving its own distinct function.

A major benefit of leveraging these built-in functions is their potential for reusability.

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