Question

When using classes in Coffeescript, I’ve stumbled upon a major problem, let me illustrate

class Bet
  constructor: () ->

  placeBet: ->
    $('#chips > div').bind 'click', ->
      amount = $(this).attr 'id'
      pile = $(this)
      switch amount
        when "ten" then this.bet pile, amount #This line causes a problem

  bet: (pile, amount) ->
    alert 'betting!'

The call to this.bet above generates the following error:

Uncaught TypeError: Object # has no method ‘bet’

So, currently the instance method of my class is not being called,
How can I correctly call the bet method of my class without it colliding with the jQuery selector’s this (Which is what I suppose is happening now)?

Thank you very much in advance!

Answer 1

Try this:

class Bet
  constructor: () ->

  placeBet: ->
    that = this
    $('#chips > div').bind 'click', ->
      amount = $(this).attr 'id'
      pile = $(this)
      switch amount
        when "ten" then that.bet pile, amount #This line causes a problem

  bet: (pile, amount) ->
    alert 'betting!'