--- title: hasFlags tags: node,intermediate --- 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. ```js const hasFlags = (...flags) => flags.every(flag => process.argv.includes(/^-{1,2}/.test(flag) ? flag : '--' + flag) ); ``` ```js // node myScript.js -s --test --cool=true hasFlags('-s'); // true hasFlags('--test', 'cool=true', '-s'); // true hasFlags('special'); // false ```