5406352152

/**
 * Convenience class for maps that store an array of values
 */
export default class ArrayMap<K, V> {
  constructor(private readonly map: Map<K, V[]> = new Map()) {}

  public get(key: K) {
    return this.map.get(key)
  }

  public add(key: K, item: V) {
    if (!this.map.has(key)) {
      this.map.set(key, [])
    }
    this.map.get(key)!.push(item)
  }

  public entries() {
    return Array.from(this.map.entries())
  }

  public keys() {
    return new Set(this.map.keys())
  }
}

1	/**
2	* Convenience class for maps that store an array of values
3	*/
4	export default class ArrayMap<K, V> {	52✔
5	constructor(private readonly map: Map<K, V[]> = new Map()) {}	1,829✔
6
7	public get(key: K) {
8	return this.map.get(key)	×
9	}
10
11	public add(key: K, item: V) {
12	if (!this.map.has(key)) {	122✔
13	this.map.set(key, [])	113✔
14	}
15	this.map.get(key)!.push(item)	122✔
16	}
17
18	public entries() {
19	return Array.from(this.map.entries())	1,815✔
20	}
21
22	public keys() {
23	return new Set(this.map.keys())	×
24	}
25	}

source-academy / js-slang / 5406352152

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