How to pass command line arguments to Node.js?
Three ways to pass the command line arguments to node.js
- Using process.argv – process.argv is an array containing the command line arguments. The first element will be ‘node’, the second element will be the name of the JavaScript file. The next elements will be any additional command line arguments.
// print process.argv
process.argv.forEach(function (val, index,
array) {
console.log(index + ‘: ‘ + val);
});
This will Genearate,
$ node process-2.js one two=three four
0: node
1: /Users/mjr/work/node/process-2.js
2: one
3: two=three
4: four
- Using yargs module – It is a light-weight option parsing with an argv hash.
- Using minimist module – It is a module which parse argument options.