Code Examples From Want

Dataminer.coffee

class Dataminer
  
  mine: (type) ->
    if this[type] 
      this[type]()
    else
      new Error 'Non-valid data type to mine. Acceptable types are image, url, and title'
      
  image: ->
    ogImage = queryOpenGraphParam "meta[property='og:image']"
    imageUrl = if ogImage and isImageUrl(ogImage.content) then ogImage.content else null
    return imageUrl
    
  title: ->
    ogTitle = queryOpenGraphParam "meta[property='og:title']"
    title = if ogTitle then ogTitle.content else null
    return title
    
  url: ->
    ogUrl = queryOpenGraphParam "meta[property='og:url']"
    url = if ogUrl then ogUrl else null
    return url
  
  # Private Methods
  queryOpenGraphParam = (selector) ->
    results = document.querySelector selector
    result = if results.length then results[0] else null
    
  isImageUrl = (str) ->
    reg = new RegExp("([a-zA-Z0-9]+://)?([a-zA-Z0-9_]+:[a-zA-Z0-9_]+@)?([a-zA-Z0-9.-]+\\.[A-Za-z]{2,4})(:[0-9]+)?(    /.*)?")
    
    if reg.test str
      return true
    else
      return false
      

# Create a new instance of the Dataminer
dataminer = new Dataminer

# Mine for an Open graph image
minedImage = dataminer.mine 'image'

Router.coffee

class Router
  @add: (path, callback) ->
    @routes or= []
    # Create a new object that creates a Regex for matching
    # and the respective callback
    @routes.push {
      path: new RegExp(path.replace(/\//g, "\\/").replace(/:(\w*)/g,"(\\w*)")
      callback: callback
    }
  @process: ->
    for route in @routes
      params = window.location.pathname.match(route.path)
      if params?
        route.callback(params)
        return

# Assume we are using jQuery

$ ->
  someFunc = ->
    alert "Profile"
  
  # Push the a route into the router
  Router.add "/profile/:id", someFunc
  
  $(document).on 'ready', ->
    # Process all routes
    Router.process()