Class ParamsAsMap

packages/router/src/shared.ts:75–107

}

class ParamsAsMap implements ParamMap {
  private params: Params;

  constructor(params: Params) {
    this.params = params || {};
  }

  has(name: string): boolean {
    return Object.prototype.hasOwnProperty.call(this.params, name);
  }

  get(name: string): string | null {
    if (this.has(name)) {
      const v = this.params[name];
      return Array.isArray(v) ? v[0] : v;
    }

    return null;
  }

  getAll(name: string): string[] {
    if (this.has(name)) {
      const v = this.params[name];
      return Array.isArray(v) ? v : [v];
    }

    return [];
  }

  get keys(): string[] {
    return Object.keys(this.params);
  }
}

/**
 * Converts a `Params` instance to a `ParamMap`.