npm-try
๐ Quickly try npm packages without writing boilerplate code.
npm-try provides a REPL interface for you to try NPM packages without writing any boilerplate code.
Simply run npm-try [packages ..]
anywhere on the shell and npm-try will show a REPL interface which has all packages installed and assigned to variables.
Features
- Super easy to use!
- npm-try even defines variables for you
- Top-level
await
support (requires Node.js >= 10)
Install
$ npm install -g npm-try-cli
Examples
Wanna try the capitalize
method of lodash package?
$ npm-try lodash
โ const lodash = require('lodash')
> lodash.capitalize('hello world')
'Hello world'
Would like to try multiple packages at the same time?
$ npm-try lodash underscore
โ const lodash = require('lodash')
โ const underscore = require('underscore')
> lodash.first([1, 2, 3])
1
> underscore.first([1, 2, 3])
1
A previous version? You can specify versions with @
symbol (Missing the old days when the pluck
still exists).:
$ npm-try lodash@3
โ const lodash = require('lodash')
> lodash.pluck
[Function: pluck]
Asynchronous operations? await
is supported out-of-the-box. Let's try ioredis:
$ npm-try ioredis
โ const Redis = require('ioredis')
> const redis = new Redis()
undefined
> await redis.get('foo')
'123'
Create a Project
REPL is not enough sometimes when you want to write more code to test with packages. npm-try offers --out-dir
/-o
option to create a self-contained project so you can write your test code at the drop of a hat.
$ npm-try lodash -o try-lodash
โ Installing lodash...
โ The project created at /Users/luin/try-lodash
Limitations
Testing multiple versions of the same package is not supported. The following command will only have lodash@3 provided:
$ npm-try lodash@4 lodash@3
โ const lodash = require('lodash')
โ const lodash = require('lodash')
> lodash.VERSION
'3.10.1'
License
MIT