Method set

src/core/data_map.ts:24–28

(key: string, value: string)

  }

  set(key: string, value: string): string | null {
    const name = this.getAttributeNameForKey(key)
    this.element.setAttribute(name, value)
    return this.get(key)
  }

  has(key: string): boolean {
    const name = this.getAttributeNameForKey(key)