Method getChildByProp

packages/melonjs/src/renderable/container.js:619–635

* return the child corresponding to the given property and value. * note : avoid calling this function every frame since * it parses the whole object tree each time * @param {string} prop - Property name * @param {string|RegExp|number|boolean} value - Value of the property * @returns {

(prop, value, objList = [])

	 * let inViewport = container.getChildByProp("inViewport", true);
	 */
	getChildByProp(prop, value, objList = []) {
		this.forEach((child) => {
			const v = child[prop];
			if (value instanceof RegExp && typeof v === "string") {
				if (value.test(v)) {
					objList.push(child);
				}
			} else if (v === value) {
				objList.push(child);
			}
			if (child instanceof Container) {
				child.getChildByProp(prop, value, objList);
			}
		});

		return objList;
	}

	/**
	 * returns the list of children with the specified class type