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JavaScript - JSON stringify Set

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Created by:
Walter
466

In this article, we would like to show you how to JSON stringify a set in JavaScript.

Quick solution:

// ONLINE-RUNNER:browser;

const mySet = new Set();
mySet.add({a: 1, b: 2})

console.log(JSON.stringify([...mySet]));

 

1. Practical example using spread operator

In this example, we use spread operator (...) to JSON stringify mySet.

Runnable example:

// ONLINE-RUNNER:browser;

const mySet = new Set();
mySet.add({a: 1, b: 2})

const result = JSON.stringify([...mySet], null, 4);

console.log(result);

2. Using Array.from() method

In this example, we use Array.from() method to JSON stringify mySet.

Runnable example:

// ONLINE-RUNNER:browser;

const mySet = new Set();
mySet.add({a: 1, b: 2})

const result = JSON.stringify(Array.from(mySet), null, 2);

console.log(result);

See also

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