JavaScript Reference
JavaScript keywords
Below are the JavaScript keywords. They cannot be used as variables, functions, or object identifiers.
| JavaScript Keywords | |||
|---|---|---|---|
| break | do | instanceof | typeof |
| case | else | new | var |
| catch | finally | return | void |
| continue | for | switch | while |
| debugger | function | this | with |
| default | if | throw | |
| delete | in | try | |
In addition, the literals null, true, and false are reserved for their standard usage.
JavaScript reserved keywords
The EcmaScript specification has the following list of words reserved for future use. You should not use these as identifiers in your JavaScript code.
| JavaScript Reserved Keywords | |||
|---|---|---|---|
| class | implements | package | static |
| enum | import | private | super |
| export | interface | protected | yield |
| extends | let | public | |
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