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Stack Visualizer

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Stack is a LIFO (Last-In-First-Out) data structure.
Push inserts at the top, Pop removes from the top, Peek inspects the top.
"Random Push/Pop" randomly pushes or pops with animation, and simulates overflow/underflow.
Stack Limit: 6 (simulates overflow)
Animations and diagram visually show stack growth and shrinkage from the top.
The UI disables controls while animating for safety.
Peek highlights the top for 3 seconds.
Overflow and underflow events are visually shown.
Implementation (TypeScript)
class Stack<T> {
  private arr: T[] = [];
  push(value: T) { this.arr.push(value); }
  pop(): T | undefined { return this.arr.pop(); }
  peek(): T | undefined { return this.arr[this.arr.length - 1]; }
  clear() { this.arr = []; }
  size() { return this.arr.length; }
}
About Stacks
A stack is a linear data structure that follows the LIFO principle: the last element added is the first one to be removed.
Applications:
  • Function call management (call stack)
  • Undo/redo systems
  • Expression evaluation
  • Syntax parsing
Main stack operations:
  • push(value): Add value to the top.
  • pop(): Remove and return the value at the top.
  • peek(): Return the value at the top without removing it.
  • clear(): Remove all elements.
  • size(): Return number of elements.
Stack is often implemented using arrays for simplicity and speed.