Performance Optimization Techniques

What optimization pattern is implemented by this code?

class Pool {
  constructor() {
    this.items = [];
  }
  acquire() {
    return this.items.pop() || new ExpensiveObject();
  }
  release(item) {
    if (this.items.length < 100) {
      this.items.push(item);
    }
  }
}

Lazy loading
Singleton pattern
Object pooling
Object pooling optimizes performance by: 1) Reusing objects instead of creating new ones, 2) Reducing garbage collection pressure, 3) Minimizing memory allocation overhead, 4) Improving performance in object-heavy operations, 5) Managing resource usage efficiently, 6) Particularly useful for frequently created/destroyed objects, 7) Reduces memory fragmentation, 8) Important for high-performance applications with frequent object usage.
Factory pattern

Next Question (17/20)