How to convert a set to an array - JavaScript

In this article we will learn how to convert a set to an array.

It is very common to convert a set to an array in JavaScript.

Problem

We have a problem, which is that we want to convert a set to an array

Imagine we have a set like this:

// Set
const set = new Set([1, 2, 3]);

console.log(set);
// Set(3) { 1, 2, 3 }

And we want to convert this set to an array.

How to solve this problem

We can solve this problem by more than one way:

• Using Array.from() method
• Using spread operator ...

Convert a set to an array using Array.from

We can use Array.from method to convert a set to an array.

Example

// set
const set = new Set([1, 2, 3]);

// Convert set to an array
const toArray = Array.from(set);

// Result:
console.log(toArray);

Output

[ 1, 2, 3 ]

Convert a set to an array using spread operator

We can use spread operator ... to convert the set to an array as well.

// set
const set = new Set([1, 2, 3]);

// Convert set to an array
const toArray = [...set];

// Result:
console.log(toArray);

Output

[ 1, 2, 3 ]

Thank you for reading

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