JavaScript Concepts
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External
Internal
Subjects
- JavaScript Reserved Words
- JavaScript Built-in Objects, Properties and Methods
- Type System
- JavaScript Classes
- JavaScript Functions
- Hoisting
Miscellanea
Strict Mode
In strict mode the code is subject to stricter syntax for increased performance, some otherwise silent errors will be thrown, and certain keywords are reserved for future versions of ECMAScript. Class bodies are executed in strict mode.