Method contains

packages/core/src/dom_components/model/Component.ts:726–738

* The method returns a Boolean value indicating whether the passed * component is a descendant of a given component * @param {Component} component Component to check * @returns {Boolean}

(component: Component)

   * @returns {Boolean}
   */
  contains(component: Component) {
    let result = !1;
    if (!component) return result;
    const contains = (components: Components) => {
      !result &&
        components.forEach((item) => {
          if (item === component) result = !0;
          !result && contains(item.components());
        });
    };
    contains(this.components());
    return result;
  }

  /**
   * Once the tag is updated I have to rerender the element