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Question 1

Definition of JS

Answer 1

• High Level: NO need to manage resources manually, everything happens automatically
• Garbage-Collected: “cleans the memory”
• Interpreted: NO compilation step
• Multi-paradigm: (1) Procedural programming, (2) OOP, (3) Functional Programming
• Prototype-based object-oriented: reuse existing objects that serve as prototypes (eg. Array.prototype.push)
• First-class functions: functions are treated as variables, we cann pass them into other functions and return them from functions
• Dynamic: the interpreter assigns variables a type at runtime
• Single-threaded: JS runs in one single thread
• Non-blocking event loop: takes long running tasks, executes them in the “background”, and puts them back in the main thread once they are finished