@sgalinski/responsive-side-menu/src/js/plugin.js

A simple and extendable slide-in menu

export default class Plugin {

	constructor(_attach = true) {
		if (_attach) {
			this.rootElement = Plugin.createElement();
			this.rootElement.classList.add(`rsm-${this.getPluginName()}`);
			this.attachElement();
		}
	}

	static createElement() {
		return document.createElement('LI');
	}

	attachElement() {
		let referenceNode = document.querySelector('.rsm-header');
		referenceNode.parentNode.insertBefore(this.rootElement, referenceNode.nextSibling);
	}

	getPluginName() {
		throw new Error(`[Plugin ${this.constructor.name}]: Your Plugin has to override getPluginName to return a proper string-identifier`);
	}

	get element() {
		return this.rootElement;
	}

}