Module quiz: Introduction to JavaScript

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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