This is an implementation of the DiUS coding test in Javascript.
To install dependencies:
yarn
To run tests:
yarn test
Implementation is in the src directory and the tests are in test.
DiUS is starting a bowling club. To help with the club, we have engaged you to program a scoring system.
The features on the system are:
- One player only
- In each frame, the bowler has 2 tries to knock down all the pins
- If in 2 tries, the bowler fails to knock down all the pins, their score is the sum of the number of pins they've knocked down in the 2 attempts
E.g, if a bowler rolls, 4,4
Their score is 8.
- If in 2 tries, the bowler knocks down all the pins, it is a spare. The scoring of a spare is the sum of the number of pins knocked down plus the number of pins knocked down in the next bowl.
E.g, if a bowler rolls, 4,6 | 5, 0
Their score is 20. So that's (4 + 6 + 5) + (5 + 0)
- If in one try, the bowler knocks down all the pins, it is a strike. The scoring of a strike is the sum of the number of pins knocked down plus the number of pins knocked down in the next two bowls.
E.g, if a bowler rolls, 10 | 5, 4
Their score is 28. So that's (10 + 5 + 4) + ( 5 + 4)
- There are 10 pins in a frame
- There are 10 frames in a match
- Don't worry about validating the number of rolls in a frame
The interface should look like this (in Java);
bowlingGame.roll(noOfPins);
bowlingGame.score();If time permits implement the rules for the last frame (i.e, 10th frame)
- In the last frame, if the bowler bowls a spare, they get another bowl. The score of this frame is the sum of the three bowls.
- In the last frame, if the bowler bowls a strike, they get another 2 bowls. The score of this frame is the sum of the three bowls
- If one has a strike for every roll, their score is 300
Notes on implementation:
- use Java, Javascript, TypeScript, Ruby, Kotlin, Python, Swift, or Groovy
- try not to spend more than 2 hours maximum. (We don't want you to lose a weekend over this!)
- don't build guis etc, we're more interested in your approach to solving the given task, not how shiny it looks
- don't worry about making a command line interface to the application
- don't use any frameworks (rails, spring etc), or any external jars/gems (unless it's for testing or build/dependency mgt)
When you've finished, send through the link to your github-repo. Happy coding