Real Vim ninjas count every keystroke - do you?

Pick a challenge, fire up Vim, and show us what you got.

Changelog, Rules & FAQ, updates: @vimgolf, RSS.

Your VimGolf key: please sign in

$ gem install vimgolf
$ vimgolf setup
$ vimgolf put 9v006705493c000000000513

Change class fields from snake case to camel case

Change the class fields in this Scala class from snake case to camel case

Start file
case class User(
  id: Long,
  username: String,
  email: String,
  first_name: String,
  last_name: String,
  age: Int,
  gender: String,
  phone_number: String,
  address: String,
  city: String,
  country: String,
  postal_code: String,
  occupation: String,
  company: String,
  salary: Double,
  is_active: Boolean,
  registration_date: java.time.LocalDate,
  last_login_date: java.time.LocalDateTime,
  preferences: Map[String, String],
  roles: List[String]
)
End file
case class User(
  id: Long,
  username: String,
  email: String,
  firstName: String,
  lastName: String,
  age: Int,
  gender: String,
  phoneNumber: String,
  address: String,
  city: String,
  country: String,
  postalCode: String,
  occupation: String,
  company: String,
  salary: Double,
  isActive: Boolean,
  registrationDate: java.time.LocalDate,
  lastLoginDate: java.time.LocalDateTime,
  preferences: Map[String, String],
  roles: List[String]
)

View Diff

5,6c5,6
<   first_name: String,
<   last_name: String,
---
>   firstName: String,
>   lastName: String,
9c9
<   phone_number: String,
---
>   phoneNumber: String,
13c13
<   postal_code: String,
---
>   postalCode: String,
17,19c17,19
<   is_active: Boolean,
<   registration_date: java.time.LocalDate,
<   last_login_date: java.time.LocalDateTime,
---
>   isActive: Boolean,
>   registrationDate: java.time.LocalDate,
>   lastLoginDate: java.time.LocalDateTime,

Solutions

The best way to learn is to practice. Below, you will find some of the solutions other golfers have entered. To unlock higher ranked solutions, submit your own entry which does as well or better than the solutions you can currently see - climb the ladder!

Check out these helpful resources to improve your Vim skills... Game on.

Unlock 121 remaining solutions by signing in and submitting your own entry
#122 mike / @mikevux262 - Score: 263 - 04/25/25 @ 13:01 
<Up><Up><Up><Up><Up><Up><Up><Up><Up><Up><Up><Up><Up><Up><Up><Up><Up><Up>:<50-53><50-53>:%s/\(_\)\(\w\)/\u\2/g<<Esc>[201~<CR>:<BS><50-53>:%s/\(_\)\(\w\)/\u\2/g<Esc>[201~u:<50-53>:%s/\(_\)\(\w\)/\u\2/g<Esc>[201~<Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><BS><BS><BS><Right><Insert><BS><Right><Left><Left><Left><.<BS><BS><BS><BS><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><Right><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS><BS>:<BS>:<50-53>:%s/\(_\)\(\w\)/\u\2/g<Esc>[201~<Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Left><Down><BS><CR>:wq!<CR>

0 comments


Created by: @pacuna

122 active golfers, 325 entries

Leaderboard (lowest score wins):
67
#121 - Alex Li / @1liale

10/21/2024 at 07:58PM

263
#122 - mike / @mikevux262

04/25/2025 at 01:01PM