/the-function-returns

The Function Returns

Setup

  1. Navigate to this directory in your terminal.
  2. Run code . to open the project in VS Code.
  3. Open main.test.js (you can use Command-P to start typing in the name!).
  4. In a terminal (preferably a full-screen one), run jest --watch-all to start testing.

Workflow

You'll be working in main.test.js, creating the variables needed with the values asked for, according to the specifications given in the tests. Check your terminal for feedback on which aspect of the problem you have yet to complete, and read the specifications' actual code implementation for extra help; it makes explicit exactly what outputs are expected given the test inputs.

Guidelines:

  • Please do not call the functions; just declare them! You can call them to check for your own testing purposes, but then either delete or comment out the line.

Tasks

Global Variables, just to refresh us on the old way of doing things.
  • Create a variable named greeting and give it the value 'Hello'.
  • Create a variable named sum and give it the value 0.
  • Create a variable named prod and give it the value 0.
  • Create a function named greet that will take one parameter (of type string). The function will change the value of greeting to 'Hello' followed by a space followed by the value of the parameter.
  • Create a function named sumOfTwo that will take two parameters (of type number). The function will change the value of sum to be equal to the sum of the two parameters
  • Create a function named multiply that will take three parameters (of type number). The function will change the value of prod to be equal to the product of the three parameters.
Let's RETURN stuff.

  • Create a function named sayHi that will take one parameter and return a personalized greeting

    INPUT: sayHi("Charlotte");

    OUTPUT: "Hello Charlotte!";

    INPUT: sayHi("Colin");

    OUTPUT: "Hello Colin!";

  • Create a function named returnWhatISay that will take a string sentence and returns that sentence

    INPUT: returnWhatISay("Hello students, how are you");

    OUTPUT: "Hello students, how are you";

  • Create a function named divide that will take two parameters and return the result

    INPUT: divide(10,5);

    OUTPUT: 2;

  • Create a function named remainder that takes two parameters and return the remainder that we get when those two numbers get divided

    INPUT: remainder(10,3);

    OUTPUT: 1;