javascript - Uncaught TypeError: Object #<HTMLInputElement> has no method 'processCard' -


i'm trying configure coffeescript class manage stripe payments. i'm basing solution on this tutorial.

here's code: 

class subscription      count = 0    page =     createform: "form#new_subscription"     createbutton: 'input#create_subscription[type=submit]'     cardnumber: '#card_number'     cardcode: '#card_code'     cardmonth: '#card_month'     cardyear: '#card_year'     stripeerror: '#stripe_error'    setupform: ->     console.log "binding submit"     $(page.createbutton).click (e) ->        $(page.createbutton).attr('disabled', true)       @processcard()       return false    processcard: ->     console.log "processing card"     card =       number: $(page.cardnumber).val()       cvc: $(page.cardcode).val()       expmonth: $(page.cardmonth).val()       expyear: $(page.cardyear).val()      stripe.card.createtoken(card, subscription.handlestriperesponse);    handlestriperesponse: (status, response) ->     if response.error       console.log "error"       $(page.stripeerror).text(response.error.message)       $(page.createbutton).attr('disabled', false)       alert ("bla")     else       alert("success: " + response.id)  jquery ->   stripe.setpublishablekey($('meta[name="stripe-key"]').attr('content'))   subs = new subscription   subs.setupform()

the problem when click on submit button, exception: 

uncaught typeerror: object #<htmlinputelement> has no method 'processcard'

i believe caused fact in method called click event self html element triggered event. while self need javascript object.

any clue on how fix this?

thanks,

without testing actual code, looks got scope wrong. 

setupform: ->   console.log "binding submit"   $(page.createbutton).click (e) =>      $(page.createbutton).attr('disabled', true)     @processcard()     return false

by using fat arrow (=>) in $(page.createbutton).click (e) => pass outer scope this inside callback , can call @processcard() (where @ refer new subscription instance , not jquery this reference htmlinputelement).


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