Javascript-primitives & variables

Question 1

What is the purpose of variables?

Answer 1

Store Data

Question 2

how do you declare a variable?

Answer 2

var (keyword) _____(variable name);

Question 3

How do you initialize (assign a value to) a variable?

Answer 3

assign operations

Question 4

What characters are allowed in variable names?

Answer 4

letters, $

Question 5

What is the purpose of a string?

Answer 5

any type of text

Question 6

What is the purpose of a number?

Answer 6

is a primitive warpper object used to represent & manipulate numbers

Question 7

What is the purpose of a boolean?

Answer 7

only gives 2 values, true or false

Question 8

What does the = operator mean in JavaScript?

Answer 8

assigned to

Question 9

How do you update the value of a variable?

Answer 9

= (equals sign)

Question 10

What is the difference between null & undefined?

Answer 10

Null = a represents a reference to a nonexistent or invalid object.
undefined= is a primitive value automatically assigned to a varibales but with no value

Question 11

Give 5 examples of JavaScript primitives?

Answer 11

strings, null, boolean,number, bigint, undefined, symbol

Question 12

Why is it a good habit to include “labels” when you log values to the brower console?

Answer 12

so you know what you are console logging