July 28, 2022

Dump / pretty print a JSON object in React

Marinus Klasen

To quickly debug something, or temporarily show the data object during development, just to know what you’re working with, it comes in handy to print the full JSON object. Not as a string that’s almost impossible to read, but as a well formatted array.

We’ve got a neat little one-liner for that, which I’ll share below

<pre>{JSON.stringify(data, null, 2)}</pre>

The JSON.stringify commands accepts 3 parameters: the value, the replacer, and the amount of spaces.

That means that you can also print the array with some more spacing, with the code below:

<pre>{JSON.stringify(document, null, 4)}</pre>

About Marinus Klasen

Marinus has been working in software/web development for more than a decade. Since 2020 his attention shifted on sharing knowledge and developing products and tools for sharing knowledge.

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