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Programming Primer (in JS)

This is an exercise to practice basic programming principles.

Instructions​

The code of this exercise can be executed via Node.js or in the console tab of your browser's developer tools.

  1. Define an addFavoriteBook(..) function that receives a single parameter, called bookName.

  2. If the provided bookName string does NOT have the word "Great" in it, add it to the favoriteBooks array.

    Hints:

    • someString.includes(anotherString) will return true if anotherString is found inside someString, or false otherwise.

    • Use ! to negate a boolean value (change true to false or vice versa).

    • someArray.push(value) will add a value to the end of the array.

  3. Define a printFavoriteBooks() function that receives no parameters.

  4. printFavoriteBooks() should first print a message like "Favorite Books: ..", and include the number of books in the favoriteBooks array.

    Hint:

    • Use the ` back-tick operators for strings that need to include values in them.

    • Use console.log(..) to print a message to the screen.

  5. Finally, printFavoriteBooks() should loop through the favoriteBooks array and print out each value.

    Make sure to then call the printFavoriteBooks() function at the end of the program.

    Hint: Use the for ( let .. of .. ) { } style loop.