jQuery basic

var jQuery = (function() {

	function jQuery(selector, context = document) {
		return new jQuery.fn.init(selector, context); 
	}

	jQuery.fn = jQuery.prototype ;

	jQuery.fn.css = function(prop, value) {
		this.pushStack.forEach(el => el.style[prop] = value);
		return this;
	}
	
	jQuery.fn.text = function(text) {
		this.pushStack.forEach(el => el.textContent = text);
		return this;
	}

	var Init = function(selector, context) {
	        context = typeof context === 'string' ? document.querySelector(context) : context;
		this.pushStack = context.querySelectorAll(selector);
		this.pushStack.forEach = [].forEach;
		this.length = this.pushStack.length;
		this.selector = selector;
		this.context = context;
	}

	jQuery.fn.init = Init;

	jQuery.fn.init.prototype = jQuery.fn;

	return (window.jQuery = window.$ = jQuery);

})();