Played Challenges
Search and Replace 0 - 4800 entries
Replace every instance of 'aaa' with 'xaaax'.
- Best score: 12
- Best player score: 20
- Position: #1422 / 1588
- Number of attempts: 3
Define to require - 118 entries
When JSHint is enabled, there's a rule that doesn't let you have more than 6 arguments in a function, so the moment you need to add a 7th argument, you need to do a refactoring.
- Best score: 62
- Best player score: 291
- Position: #48 / 48
- Number of attempts: 1
A simple change - 442 entries
Just change the numbers in the most efficient way ...
- Best score: 12
- Best player score: 14
- Position: #84 / 189
- Number of attempts: 4
switch variable - 5038 entries
how fast can you switch two variable ?
- Best score: 11
- Best player score: 13
- Position: #1067 / 1737
- Number of attempts: 2
Reverse characters in a line - 714 entries
You have everything you need, just not in the right order. Mastermind would give you 26 white pegs.
- Best score: 12
- Best player score: 33
- Position: #237 / 251
- Number of attempts: 2
Reformat most common surnames - 654 entries
Reformat copy-pasted table into a list of the most common surnames
- Best score: 23
- Best player score: 88
- Position: #194 / 199
- Number of attempts: 1
Sort and add attributes - 1334 entries
Sort the states and add the attribute country to each record.
- Best score: 33
- Best player score: 37
- Position: #414 / 532
- Number of attempts: 2
Reconstruct the Sentence - 1379 entries
Get the sentence back in the proper order, remove duplicate lines, and then combine the separate lines into one.
- Best score: 20
- Best player score: 28
- Position: #352 / 387
- Number of attempts: 3
Simple text editing with Vim - 12330 entries
Make the pairs of lines match up by making each second line same as first
- Best score: 13
- Best player score: 26
- Position: #3078 / 3592
- Number of attempts: 6