How many times will the following code print the word 'Hello'? <pre> for(var i = 0; i <= 5; i++) { console.log("Hello"); } </pre>

That's correct! 'i' starts with the value '0'. The condition checks if 'i' is less than or equal to '5'. Each loop increments 'i' by '1'. This means that the loop will run 6 times.

What will print out when the following code runs? <pre> var i = 3; var j = 5; if(i == 3 && j < 5) { console.log("Hello"); } else { console.log("Goodbye"); } </pre>

That's correct! The condition checks if 'i' is equal to '3' AND if 'j' is less than '5'. Since the result of this condition is false, the code inside the else statement will run.

What will print out when the following code runs? <pre> var i = 7; var j = 2; if(i < 7 || j < 5) { console.log("Hello"); } else { console.log("Goodbye"); } </pre>

That's correct! The condition checks if 'i' is less than '7' OR if 'j' is less than '5'. Since the result of this condition is true, the code inside the if statement will run.

Module Quiz: Introduction To JavaScript » Week 1 » Programming With JavaScript

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

That's correct! The devtools console is useful for running JavaScript code.

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

That's correct! /* and */ are define the beginning and end of multi-line comments.<br> That's correct! // are define the beginning and end of single-line comments.

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

That's correct! The string, numbers, booleans and null data type represents a sequence of characters in JavaScript

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

That's correct! && is the logical AND operator used for condition checks.

Q: Which of the following is the assignment operator in JavaScript?

That's correct! The = symbol is used to assign to variables in JavaScript.

Q: The result of !false is:

Correct! When you add the NOT operator before a boolean value, the returned value is the opposite of the boolean value. Thus, !false is evaluated to true, and !true is evaluated to false.

Q: What does the operator symbol || represent in JavaScript?

That's correct. In JavaScript, the || is the logical OR operator.

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What does the operator symbol || represent in JavaScript?

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Module quiz: Introduction to JavaScript

Q:

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

Q:

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

Q:

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

Q:

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

Q:

Which of the following is the assignment operator in JavaScript?

Q:

How many times will the following code print the word ‘Hello’? for(var i = 0; i <= 5; i++) { console.log("Hello"); }

Q:

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"); }

Q:

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"); }

Q:

T​he result of !false is:

Q:

What does the operator symbol || represent in JavaScript?

The result of !false is: