Method iife

lib/RuntimeTemplate.js:490–492

* Returns iIFE code. * @param {string} args arguments * @param {string} body body * @returns {string} IIFE code

(args, body)

	 * @returns {string} IIFE code
	 */
	iife(args, body) {
		return `(${this.basicFunction(args, body)})()`;
	}

	/**
	 * Returns for each code.