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Pop the console of JS library websites to demo the library

Did you know that often you can pop the console of a JS library website to demo the library?

This is a great way to quickly test out a library without having to set up a project or write any code.

Examples

Decimal.js

For example, in Decimal.js you can pop the console and run:

> const a = new Decimal(0.1)

> const b = new Decimal(0.2)

> a.plus(b).toNumber()

0.3

decimal.js screenshot

Lodash

At Lodash you can run:

_.difference(["a", "b", "c"], ["b", "c"])["a"];

lodash screenshot

Moment.js

At Moment.js you can run:

moment().format("MMMM Do YYYY, h:mm:ss a");

("August 13th 2024, 11:16:55 am");

moment.js screenshot

Date-fns

At date-fns you can run:

// init date-fns on the page
init();

// use the _ object to access date-fns functions
_.addDays(new Date(), 5);

("Sun Aug 18 2024 11:18:39 GMT+1000 (Australian Eastern Standard Time)");

Date Fns even prompts you from within the console.

date-fns screenshot

So next time you're checking out a JS library, remember to pop the console and give it a spin!