Parse command-line arguments in Node.js

parseArguments.js

/**
 * Parse command-line arguments in the format:
 * ● --arg_name=arg_value
 * ●  -arg_name=arg_value
 * ●   arg_name=arg_value
 *
 * @author Mohamed Riyad <m@ryad.me>
 *
 * @param   {string[]} [args] - The array of command-line arguments.
 * @returns {Object}            An object containing the parsed arguments.
 */
function parseArguments(args = null) {
    args = args || process.argv.slice(2)
    const argPattern = /^-?-?([a-zA-Z][\w-]*)=(.+)$/
    const parsedArgs = {}

    for (const arg of args) {
        const match = arg.match(argPattern)

        if (match) {
            const argName = match[1]
            const argValue = match[2]
            parsedArgs[argName] = argValue
        }
    }

    return parsedArgs
}