Core JS 101

Task

The task is to implement functions on different Core JS topics. There are nine modules with different tasks. Each module consists of tasks for specified topic:

1. Strings
2. Numbers
3. Arrays
4. Date
5. Regexp
6. Objects
7. Promises
8. Conditions and Loops
9. Functions and Closures

Active usage of documentation is strongly recommended!

Prepare and test

1. Install Node.js

2. Fork this repository: https://github.com/mikhama/core-js-101/

3. Clone your newly created repo: https://github.com/<%your_github_username%>/core-js-101/

4. Go to folder core-js-101

5. To install all dependencies use npm install

6. Each task is usually a regular function:

     /**
      * Returns the result of concatenation of two strings.
     *
     * @param {string} value1
     * @param {string} value2
     * @return {string}
     *
     * @example
     *   'aa', 'bb' => 'aabb'
     *   'aa',''    => 'aa'
     *   '',  'bb'  => 'bb'
     */
     function concatenateStrings(value1, value2) {
       throw new Error('Not implemented');
     }

   Read the task description in the comment above the function. Try to understand the idea. You can see the tests prepared if you don't understand it.

7. Write your code in task/*.js.

   Remove the throwing error line from function body:

       throw new Error('Not implemented'); 

   Implement the function by any way and verify your solution by running tests until the failed test become passed (green).

8. Run npm test in command line. If everything is OK you can try to resolve the next task.

9. You will see the number of passing and pending tests: 101 of passing tests is equal to 100 in score.

Submit to rs app

1. Open rs app and login
2. Go to submit task page
3. Select your task (Core JS 101)
4. Press submit button and enjoy

Notes

• We recommend you to use nodejs of version 10 or lower. If you using any of features that does not supported by node v10, score won't be submitted.
• Please be sure that each of your test in limit of 30sec.
• You will get 0 (zero) if you have any eslint's errors or warnings.

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The task based on https://github.com/rolling-scopes-school/js-assignments.