Simple Object Pool Implementation

ObjectPool.ts

class ObjectPool<T> {
  private _pool: T[] = [];
  
  private readonly _createObject: () => T;
  private readonly _resetObject: (obj: T) => void;
  private readonly _maxPoolSize: number;

  constructor(creator: () => T, reset: (obj: T) => void, maxPoolSize: number = 10) {
    this._createObject = creator;
    this._resetObject = reset;
    this._maxPoolSize = maxPoolSize;
  }

  // Get an object from the pool, or create a new one if the pool is empty
  public getObject(): T {
    return this._pool.length > 0 ? this._pool.pop()! : this._createObject();
  }

  // Return an object to the pool
  public returnObject(obj: T): void {
    if (this._pool.length >= this._maxPoolSize) return;
    
    this._resetObject(obj);
    this._pool.push(obj);
  }
}