Pseudocode Example: A Signup Form

gistfile1.md

#Pseudocode Example: A Signup Form ##Entities

• Email field: input type = email, placeholder: “[email protected]”
• Password field: input type = password, placeholder: “Password”
• Password confirmation field: input type = password, placeholder: “Password again”
• Signup submit: value: “Sign Up”, default state, disabled

##Signup Flow/Logic

###On leave focus of email field

IF email is blank

    Error message: “Please enter an email address.”

ELSE IF email field value is not a valid email address

    Error message: “This doesn’t look like an email address. Please try again.”

###On leave focus of password

IF password is not sufficiently strong

    Error message: “Please replace with a stronger password.”

###On leave focus of password confirmation

IF password confirmation does not match password

    Error message: “Please replace with a stronger password.”

###On leave focus of email, password or password confirmation

IF email AND password AND password confirmation all contain valid values

    Enable Signup Submit

##Discussion topics:

• What constitutes a sufficiently strong password?

• What constitutes a valid email? Eg do we want to allow “[email protected]”

• What should we do if the email already is in use?

  eg ELSE IF email field already is in use

    Error message: “This email is already in use. Did you want to [Sign In] instead?”