Method consumeOptional

packages/router/src/url_tree.ts:810–816

(str: string)

  // Consumes the prefix when it is present and returns whether it has been consumed
  private consumeOptional(str: string): boolean {
    if (this.peekStartsWith(str)) {
      this.remaining = this.remaining.substring(str.length);
      return true;
    }
    return false;
  }

  private capture(str: string): void {
    if (!this.consumeOptional(str)) {