Method forEach

packages/melonjs/src/renderable/container.js:509–523

* The forEach() method executes a provided function once per child element. * the callback function is invoked with three arguments: * - The current element being processed in the array * - The index of element in the array. * - The array forEach() was called upo

(callback, thisArg)

	 * container.forEach((child, index, array) => { ... }, thisArg);
	 */
	forEach(callback, thisArg) {
		let i = 0;
		const children = this.getChildren();

		const len = children.length;

		if (typeof callback !== "function") {
			throw new Error(callback + " is not a function");
		}

		while (i < len) {
			callback.call(thisArg ?? this, children[i], i, children);
			i++;
		}
	}

	/**
	 * Swaps the position (z-index) of 2 children