Neversitup Test Project

Pre requisite

NodeJS v15+

Install dependency

$ npm install

Run the app

# ts-node (no compile)
$ npm run start:dev

# build project
$ npm run build

# run build version
$ npm run start

Unit test

$ npm run test

Project structure

Each answer and it's unit test file are contain within their corresponding directory.

.
├── count-smileys                       # Count smiley module
│   ├── count-smileys.test.ts
│   └── count-smileys.ts
├── find-odd                            # Find odd module
│   ├── find-odd.test.ts
│   └── find-odd.ts
├── permutation                         # Permutation module
│   ├── permutation.test.ts
│   └── permutation.ts
├── jest.config.ts                      # Jest configuration file
├── tsconfig.json                       # Typescript configuration file
├── package.json
├── package-lock.json
└── README.md

Naming conventions

Function names

• Use camelCase for function names.
• Function name should start with verb (ex. find...(), get...()).

Variable names

• Use camelCase for variable names.
• Use meaningful and descriptive names (Using i as loop index are acceptable).
• Standard built-in objects variable should have type postfix (ex. userArr, productMap, permutationsSet).

Code styles

Indentation and spacing

• Use a consistent indentation of four spaces.
• Use spaces around binary operators and after commas.
• Use space after , in function argument.
• Use padding line around loop.
• Use padding line before function return (One line function are exception).
• Use padding line before throw statement.

Curly braces

• Use the "K&R" style with braces on the same line.