JS Sets

A mathematical Set behaves remarkably comparable to an array block, but implements a hyper-aggressive unique-variable structural law: No raw value may ever be replicated or duplicated.

Utilizing the Constructor

To launch a Set, initialize new memory space using the standard new Set() command. Observe below as our code forcefully attempts to insert three identical variables; the internal algorithm brutally crushes the duplicate clones.

Methods of Extraction

Testing a specific key’s existence proves spectacularly faster referencing a rigid Set structure than linearly scanning an ordinary, sprawling array map using .has().