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JS Interview Questions and Testing Suite

This repository is a compilation of common interview questions with testing suites written in Mocha. The skeletons for solutions are provided in the ./lib folder. There are also several additional functions in the ./util folder, which may prove helpful in solving certain problems.

For practice solving interview questions in Ruby with prewritten specs, checkout John Goddard's project here, which was the basis for this repository.

Run All Tests

  • Navigate to the root directory in terminal
  • Execute the following:
$ npm test

Run a Single Test

  • Navigate to the root directory in terminal
  • Execute
$ npm test <path_to_test>
  • For instance, to run the Chapter 12 test suite, execute the following:
$ npm test ./test/ch12_test.js

Automate Test Creation

Test skeletons were generated automatically with ./util/test_generator.js. You can use it by creating a subject file that exports all the functions you wish to test. You'll need to edit the test generator to search for the right file:

  • NB: You may have to install babel-node globally before proceeding.
  • Create a subject file in ./lib folder
  • Create and export the functions you wish to test
  • Open up ./util/test_generator.js
  • Edit the test generator to find the newly created subject file
  • Navigate to the root directory in terminal
  • Execute the following:
$ babel-node ./util/test_generator.js
  • You'll find your new test file in the ./test folder. Just uncomment the body and you're ready to write tests!

Problem Sources

  • Problems in ch_.js files are sourced from Elements of Programming Interviews
  • Problems in chA_.js files are sourced from Introduction to Algorithms (Cormen)
  • Problems in cci_.js files are sourced from Cracking the Coding Interview