is it a reserved keyword ?

If your're wondering if some name is reserved in Javascript, make it sure by checking it out with is-reserved. It supports from ECMASCript 1 until ECMAScript 6 and even the ECMAScript 7 draft.

Installation

``bash
$ npm install is-reserved


or set it up globally


$ npm install is-reserved --global
`

Command line

is-reserved was made to run right away from your terminal

`bash
$ is-reserved delete
`

You may specify the ECMAScript version with the option --es

`bash
$ is-reserved delete --es6
`

For other options, just type $ is-reserved help

Usage

It is also possible to use it programatically:

` js
import isReserved from 'is-reserved';

console.log('is delete reserved on latest ECMAScript Version?', isReserved.check('delete'));
console.log('is delete reserved on ES6?', isReserved.check('delete', isReserved.ES6));
console.log('is delete reserved on ES2?', isReserved.check('delete', isReserved.ES2));

// List all reserved keywords for ES5
console.log(isReserved.keywords[isReserved.ES5]);

`

Test

`
npm run test
``

License

MIT