Function checkComponentDefined

src/core/a-entity.js:797–802

* Check if a component is *defined* for an entity, including defaults and mixins. * Does not check whether the component has been *initialized* for an entity. * * @param {string} el - Entity. * @param {string} name - Component name. * @returns {boolean}

(el, name)

 * @returns {boolean}
 */
function checkComponentDefined (el, name) {
  // Check if element contains the component.
  if (el.components[name] && el.components[name].attrValue) { return true; }

  return isComponentMixedIn(name, el.mixinEls);
}

/**
 * Check if any mixins contains a component.