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Week 1

As a part of this assignment, you would have to complete some simple javascript functions present in the src directory!

To run the project:

  1. Fork and clone the repository.
  2. Install NodeJS on your system.
  3. Run npm i.
  4. Solve the tasks!
  5. You can view your progress by running the command npm run test and then viewing the file test.html!
  6. When done, push the same to GitHub and create a Pull Request to submit your work.

How to implement assignments

Task modules are located in the src folder. Each module consists of several tasks (functions you need to complete) for specified topic. Each task/fucntion looks mostly like the following:

/**
 * 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. The comments clearly document what the inputs to the function are, and what should it's return value be.
  • Remove the throwing error line from function body
throw new Error("Not implemented");

and run the unit tests again using npm run test.

  • Find the test corresponding to the function in the automatically opened Test Results page. You can see the points associated with the particular test on the webpage.

  • Clicking on the header corresponging to the test would also give you additonal information about the failing cases!

    Test Information Example

    For example, in this screenshot, we can see that the findElement function is failing on the call findElement(["Array", "Number", "string"], "Date") as the same is returning the value 1, while the value -1 was expected!

  • Implement the function using your JS knowledge and verify your solution by running tests until the failed test passes (becomes green).

  • Even after your solution passes, try to refactor it! Try to make your code as pretty and simple as possible keeping the tests green!

  • You can see your total score in the tests in the command line where you ran the npm run test command. You can include a screenshot of the same while submitting the pull request.

Evaluation

You need to obtain atleast 70% score in this assignment and then create a PR to complete this week.

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