How to convert set to string - JavaScript

In this article we will learn how to convert set to a string in JavaScript.

It is very common to convert set to a string in JavaScript in JavaScript.

Problem

Now we have a problem, which is that we want to convert the set into a string.

Imagine you have a Set like this:

const set = new Set([1, 2, 3, 4]);

And we want to convert it into a string.

How to solve this problem?

The solution to this problem is easy, but first we have to convert the Set into an array and then convert the array into a String using join method.

Solution will be as follow:

• Convert set to an array using Array.from
• Convert array to a string using join method

Convert set to a string

We can convert set to a string but first we need to convert set to an array.

// Set
const set = new Set([1, 2, 3, 4]);

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

// Result:
console.log(toArr);

Output

[ 1, 2, 3, 4 ]

Then, we will convert this array into a string.

// Set
const set = new Set([1, 2, 3, 4]);

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

// Convert to a string
const result = toArr.join(' ');

// Result:
console.log(result);

Output

1 2 3 4

If you want to add separator between each element you can do this:

// Set
const set = new Set([1, 2, 3, 4]);

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

// Convert to a string with separator
const result = toArr.join('-_-');

// Result:
console.log(result);

Output

1-_-2-_-3-_-4

Thank you for reading

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