Generic queue in TypeScript

A generic FIFO queue, the counterpart to the stack.

class Queue<T> {
  private items: T[] = [];

  enqueue(item: T): void {
    this.items.push(item);
  }

  dequeue(): T | undefined {
    return this.items.shift();
  }

  get isEmpty(): boolean {
    return this.items.length === 0;
  }
}

Keywords and builtins used here

• T
• boolean
• class
• private
• return
• this

The run, in numbers

Lines

15

Characters to type

211

Tokens

71

Three-star pace

110 tpm

At the three-star pace of 110 tokens a minute, this run takes about 39 seconds.

Type this snippet

Step 5 of 5 in Building & injecting, step 13 of 19 in Classes & patterns.

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