js

js is a a better alternative to node -p. It will automatically convert data from and to JSON string representations, and will automatically expose enviroment variables as globals preceded with $.

Usage

``bash
js
`

Examples

Using math

`bash
js 2+2
`

Read a field from a JSON file

`bash
js stdin.version < package.json
`

Add a field to a JSON file on the fly

`bash
js 'stdin.foo = "bar", stdin' < in.json > out.json
``