You can run JavaScript in a web browser's devtools console.

• true

• false

Which of the following are valid comments in JavaScript? Select all that apply.

•     \ Comment 1
  

•     // Comment 2
  

•     ##
      ## Comment 3
      ##
  

•     /*
      * Comment 4
      */
  

  

Which of the following are valid data types in JavaScript? Select all that apply.

• string

• numbers

• booleans

• null

Which of the following is the logical AND operator in JavaScript?

•     &
  

•     &&
  

•     ||
  

•     |\
  

  

Which of the following is the assignment operator in JavaScript?

•     =
  

•     ==
  

•     ===
  

  

How many times will the following code print the word 'Hello'?

 for(var i = 0; i <= 5; i++) {
   console.log("Hello");
 }

• 4

• 5

• 6

What will print out when the following code runs?

 var i = 3;
 var j = 5;

 if(i == 3 && j < 5) {
   console.log("Hello");
 } else {
   console.log("Goodbye");
 }

• Hello

• Goodbye

• Nothing

What will print out when the following code runs?

 var i = 7;
 var j = 2;

 if(i < 7 || j < 5) {
   console.log("Hello");
 } else {
   console.log("Goodbye");
 }

• Hello

• Goodbye

• Nothing

The result of !false is:

• true

• undefined

What does the operator symbol || represent in JavaScript?

• The logical OR operator

• The logical NOT operator

• The logical AND operator