Javascript Homework

1. Variables

   • https://www.youtube.com/watch?v=cXUWYZXru6o (7 min video)
   • https://www.codeanalogies.com/jsconstruction/ (interactive game)

2. Conditions

   • https://blog.codeanalogies.com/2018/06/18/javascript-booleans-explained-by-going-to-court/ (reading)

Assignment Operator

Without running the following code, try to determine:

let a = 1;
let b = 'bongos';
let c = true;

a = b;
b = c;
c = a;

Your solution here:

1. What is a?

a is 'bongos'

2. What is b?

b is true

3. What is c?

c is 'bongos'

Concatenation

Use the + operator to concatenate these strings together within a console.log(): "Please", "squeeze", "the", "cheese". Make sure there are spaces in-between each word.

const firstWord = "Please";
const secondWord = "squeeze";
const thirdWord = "the";
const fourthWord = "cheese";

Result should be:

"Please squeeze the cheese"

Your solution here:

4. Fill in the console.log()?

console.log(firstWord+" "+secondWord+" "+thirdWord+" "+fourthWord);

Output a console log The sum of 5 and 10 is 15 where the values for 5 and 10 are saved to variables, and where 15 comes from those variables being summed.

const num1 = 5;
const num2 = 10;

Your solution here:

5. How can we make num3 equal to the sum of num1 and num2?

let num3 =num1+num2;

6. Use variables num1, num2 and num3 to fill in the console.log() to complete the sentence:

The sum of 5 and 10 is 15

console.log("The sum of "+num1 +" and "+num2+" is " +num3);

Comparisons

By just looking at the following expressions, determine in your mind whether or not each will evaluate to true or false

a) 999 > 999
b) 999 === 999 
c) 999 !== 999
d) -5 >= -4
e) 100 <= -100
f) 20 + 5 < 5 
g) 81 / 9 === 9
h) 9 !== 8 + 1

Your solution here:

7. Write true or false based on the list above

a) false
b) true
c) false
d) false
e) false
f) false
g) true
h) false

Conditionals

Declare a variable equal to a number 0 to 100

Write a conditional statement that...

• If it is a multiple of 3, print “Fizz” instead of the number.
• If it is a multiple of 5, print “Buzz” instead of the number.
• If it is a multiple of both 3 and 5, print “FizzBuzz” instead of the number.
• Otherwise, print the number

Your solution here:

8. Write your javascript solution below

let num=prompt("enter a number");
if(num%15==0) {console.log("FizzBuzz");}
else  if (num%3==0){console.log("Fizz");}
else if (num%5==0) {console.log("Buzz");}
else  {console.log(num);}

BONUS

9. Research a loop so that your condition runs on every number from 0 to 100

let num=prompt("enter a number");
while (num <=100 && num >=0)
  {console.log("number in the range");}

10. Research a function so that your condition runs on every number from 0 to whatever number is passed into the function

let num=prompt("enter a number");
if ( num >=0)
 {inRange();}
else {notInRange();}

function inRange() {
  alert( 'number is in the range' );
}
function notInRange() {
  alert( 'number is not in the range' );
}

Additional Resources

For more practice read about...

• https://javascript.info/variables
• https://javascript.info/types
• https://javascript.info/operators
• https://javascript.info/comparison
• https://javascript.info/ifelse
• https://javascript.info/logical-operators