Talk given at Prod Conf

2. A Credit Card Form walks
into a bar……

3. A Credit Card Form walks
into a bar……
A Talk on Credit Card Forms
by
Justin Woo
Braintree Developer Advocate

4. A Credit Card Form walks
into a bar……
A Talk on Credit Card Forms
by
Justin Woo
Braintree Developer Advocate

5. A Credit Card Form walks
into a bar……
A Talk on Credit Card Forms
A series of Bad Jokes
by
Justin Woo
Braintree Developer Advocate

6. A Credit Card Form walks
into a bar……

7. he says to the bartender,
“I’ve been having a hard time meeting
people”
the bartender says:
“Wait, aren’t you supposed to be good
at generating…”

8. “interest”

9. THANK YOU!

10. I <3 Braintree

11. I Have a Dog

12. Who is Blind…BUT

13. Thinks he can see?!?!

15. People always want to
pet him..
especially kids!!!

16. I wrote an application
that….

17. charges people when
they want to pet him

18. I know what you are
thinking

19. I’m an a**hole

20. I’m actually trying to
raise money for his eye
surgery

21. I promise!!!

22. A Credit Card Form walks
into a bar……

23. the bartender says,
“Why do you keep coming in here day after day
?”
The credit card form looks at him miserably says
“I’m just looking for some ………

24. “validation”

27. Things
people should not do
when
building a
Credit Card Form

29. Things
Justin Thinks
merchants
should not* do
when making him
buy more stuff

30. Add a Captcha

31. Captcha
Completely Automated Public Turing Test To Tell
Computers and Humans Apart

37. Ask users to
register…

38. Ask users to
register..
before purchasing

51. An American Express walks
into a bar in Moscow……

52. the bartender says,
“Sorry mate,
You aren’t allowed in here
without a ….”

53. “Visa”

54. Don’t Autodetect
Credit Card Type

58. *Blatant copy of Wikipedia

65. http://jquerycreditcardvalidator.com/

66. http://creditcardjs.com/

67. I <3 Braintree

68. You lost me at the
Card Security Number

77. http://jessepollak.github.io/card/

78. http://kenkeiter.com/skeuocard/

79. I <3 Braintree

80. Not format dates like
they are on a credit
card

84. I <3 Braintree

85. A Credit Card Form walks
into a bar……

86. he tries to pick up someone at the bar,
She turns him down.
The credit card form
looks at the bartender and says
“Well, this is awkward normally I’m
the one who……

87. “declines”

88. Not Validate
Credit Card # field
Inline

89. Luhn algorithm

97. I <3 Braintree

98. Not Fill the form
for me

105. Have a
Reset/Clear
button

108. Not Keep Labels
Visible
at all Times

110. I <3 Braintree

111. Not limiting the
number of digits

112. Card Number of Digits
AMEX 15
Visa 13 or 16
MasterCard 16
Discover 16

114. http://zdfs.github.io/toscani/paymentI
nfo/index.html

115. I <3 Braintree

116. A Credit Card Form walks
into a bar……

117. the bartender says,
“You are new to this joint aren’t you?”
The credit card form
looks at him and says
“Yeah, I just……

118. “discovered” it

121. THANK YOU!

122. Justin Woo
Developer Advocate
justin.woo@braintreepayments.com