30-seconds-of-code
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A collection of useful JavaScript snippets.
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### hasFlags
Check if the current process's arguments contain the specified flags.
Use `Array.every()` and `Array.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
```