30秒学会 JavaScript 片段 – Check if process arguments contain flags

Checks if the current process’s arguments contain the specified flags.

• Use Array.prototype.every() and Array.prototype.includes() to check if process.argv contains all the specified flags.
• Use a regular expression to test if the specified flags are prefixed with - or -- and prefix them accordingly.

代码实现

const hasFlags = (...flags) =>
  flags.every(flag =>
    process.argv.includes(/^-{1,2}/.test(flag) ? flag : '--' + flag)
  );

// node myScript.js -s --test --cool=true
hasFlags('-s'); // true
hasFlags('--test', 'cool=true', '-s'); // true
hasFlags('special'); // false

翻译自：https://www.30secondsofcode.org/js/s/process-arguments-have-flags