Reserved keywords are the words which cannot be used as variable names.
Below is the list of such keywords:
| abstract | boolean | break | byte | case | catch |
| char | class | const | continue | debugger | default |
| delete | do | double | else | enum | export |
| extends | false | final | finally | float | for |
| function | goto | if | implements | import | in |
| instanceof | int | interface | long | native | new |
| null | package | private | protected | public | return |
| short | static | super | switch | synchronized | this |
| throw | throws | transient | true | try | typeof |
| var | void | volatile | while | with |