Assessment for JavaScript Fundamentals

You have 20 minutes

Instructions

Fork, clone, and npm install.

Follow the prompts below and complete each question. You may use any resource, other than someone else in the classroom, to help you complete this assessment.

You should save your answers in this README.md file.

Question 1

var a = 2;
var b = 3;
a = b;

After this code executes, what are the values of a and b? Please explain your answer.

Question 2

var c = 5;
var d = 2;
c = c + d;

After this code executes, what is the value of c? Please explain what the last line of this program c = c + d; means.

Question 3

var x = 4;
var y = 3;
x = y;
y = 10;

After this code executes, what are the values of x and y? Please explain your answer.

Question 4

var weather;
weather = "sunny";
weather === "sunny";

What are the values of these expressions? Explain your answers.

Question 5

var howMuchILikeSushi = 2;

if (howMuchILikeSushi >= 3) {
  console.log("sushi is delicious");
}

if (x > 0) {
  console.log("sushi is tasty");  
}

Imagine that you take the code from this question, save it to a file called food.js, and run node food.js in your Terminal.

What would be the output? Explain your answer.

Question 6

var howMuchILikeSushi = 2;

if (howMuchILikeSushi > 0) {
  console.log("sushi is tasty");  
} else if (x >= 3) {
  console.log("sushi is delicious");  
} else {
  console.log("I don't like sushi");
}

Imagine that you take the code from this question, save it to a file called sushi.js, and run node sushi.js in your Terminal.

What would be the output? Explain your answer.

Question 7

//We'll learn about require later in the course
var ask = require('./ask.js');

var answer = 'not empty';

while (answer !== '' && answer !== 'SeCrEt') {
  answer = ask("Guess my secret? ");
}

Imagine that you take the code from this question, save it to a file called name.js, and run node name.js in your Terminal.

What would you have to type to exit the while loop? Explain your answer.

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Commit and push your changes.

Submit a pull request.