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See How Data Structures Work in JavaScript

Choosing the right data structure is what separates good code from great code. But how do they actually work?

This visualizer covers:

• Stacks — LIFO ordering, push/pop operations
• Queues — FIFO ordering, enqueue/dequeue
• Maps — ordered key-value pairs with any key type
• Sets — unique value collections

▶ Open Interactive Visualizer