extract-sourcemap

extract-sourcemap

Extract the sourcemap from a JS or CSS file

Usage via CLI

Provide the name of the file you want to extract the sourcemap from, then provide the keys of the sourcemap you want to extract:

extract-sourcemap index.js version

This will output the sourcemap in JSON format:

{"version":3}

Usage as a library

Provide the source you want to extract the sourcemap from as a String or Buffer and provide the keys of the sourcemap you want to extract as an array:

let extractSourcemap = require("extract-sourcemap");

let source = "...";
let map = extractSourcemap(source, ["version"]);

You will get back the sourcemap as an Object.

License

extract-sourcemap is licensed under MPL-2.0 License.