Small jquery-like experiment

noquery.js

var $ = function(){

    function noQuery() {
        var args = Array.prototype.slice.call(arguments, 0)[0],
            query = args[0]
            qsa = function(q){ 
                return Array.prototype.slice.call(document.querySelectorAll(q), 0)
            }     
            
        this.el = []     
        
        if (typeof query == 'string'){

            // create element
            if (/^<([a-z])+>$/.test(query)){ 
                var el = document.createElement(query.substr(1, query.length-2))
                this.el.push(el)
            }
            // query selector       
            else{

                this.el = qsa(query)
            }
        }
    }
    
    noQuery.prototype.each = function(arr, iterator){
        arr.forEach(iterator)
    }
    
    noQuery.prototype.on = function(ev, fn){
        this.each(this.el, function(el){
            el.addEventListener(ev, fn)
        })
        return this
    }
    
    noQuery.prototype.off = function(ev, fn) {
        this.each(this.el, function(el){
            el.removeEventListener(ev, fn)
        })
        return this
    }
    
    noQuery.prototype.css = function(prop, value){
        this.el.forEach(function(el){
            
        })
        return this
    }
    
    noQuery.prototype.attr = function(prop, value){
        if (arguments.length == 1){
            if (typeof prop == 'string'){
                this.each(this.el, function(el){
                    return el.getAttribute(prop)
                })
            }
        }
        return this
    }
    
    return new noQuery(arguments)
}