CoffeeScript version of jQuery DOM Shortcut

builder.coffee

do ->
    setOptions = (el, attributes) ->
        for own key, value of attributes
            el.setAttribute key, value
        el
        
    _(['ol','ul','li','span','strong','p','h1','h2','h3','h4']).each (tag) ->
      window["_#{tag}"] = (html, attributes, children...) ->
        el = document.createElement tag
        if attributes?
            if attributes.jquery?
                children.unshift attributes
            else
                el = setOptions el, attributes

        if html? 
            if html.jquery?
                children.unshift attributes
            else
                if typeof html is 'object'
                    el = setOptions el, html
                else if typeof html is 'string'
                    el.innerHTML = html
        el = $(el)
        for child in children
          el.append child
        el