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jamesseanwright/node-args-parser.js

Created March 23, 2020 13:05
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A simple Node.js command line args parser
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node-args-parser.js
// Invoked with node script.js --db-url=postgres://0.0.0.0:5432/db --commit --item-count=5
const parseArgs = (args) =>
new Map(args.map((arg) => arg.match(/^--([a-z0-9-]+)=?(.*)$/i).slice(1)));
const args = parseArgs(process.argv.slice(2));
const dbUrl = args.get('db-url'); // 'postgres://0.0.0.0:5432/db'
const shouldCommit = args.has('commit'); // true
const itemCount = Number.parseInt(args.get('item-count'), 10);
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