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Pretty format JSON

Written byPhuoc Nguyen

Tags

JavaScript

Created

27 Feb, 2021

Last updated

03 Mar, 2021

Contributors

We often use `JSON.stringify` to generate JSON for a given object. By default, it removes all spaces between items. It's not easy to scan the output, especially when using with `console.log`.

Do you know that it's possible for us to generate a pretty output by passing the indentation level to the third parameter?

const person = {
    firstName: 'John',
    lastName: 'Doe',
    ages: 42,
};

JSON.stringify(person, null, 2);

/*
"{
  "firstName": "John",
  "lastName": "Doe",
  "ages": 42
}"
*/

If you prefer tab for the indentations, then passing the `\t` character:

JSON.stringify(person, null, '\t');

/*
"{
	"firstName": "John",
	"lastName": "Doe",
	"ages": 42
}"
*/

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Phước Nguyễn

Pretty format JSON

#See also

Questions? 🙋

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