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@vadzim/js

v1.0.0

Published

A better `node -p`.

Downloads

4

Readme

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

js <javascript>

stdin variable can be used to access input. $ is a synonym for stdin.

Examples

Using math

js 2+2

Read a field from a JSON file

js stdin.version < package.json

Add a field to a JSON file on the fly

js '$.foo = "bar", $' < in.json > out.json

Promises & streams are resolved automatically

js 'new Promise(resolve => require("http").get("http://google.com", resolve))'

await can be used in the calculated expression if it is supported by node.