Data Types

Question 1

What type of data can javascript variable hold?

Answer 1

numbers, strings, objects and more

Question 2

What happens when you add a number to a string?

Answer 2

JavaScript will treat the number as a string

Question 3

How does JS evaluate an expression

Answer 3

from left to right

Question 4

What type are in JS?

Answer 4

dynamic types

Question 5

What does dynamic types mean?

Answer 5

the same variable can be used to hold different data types

EX: var x;               // Now x is undefined
var x = 5;           // Now x is a Number
var x = "John";      // Now x is a String

Question 6

What is a String?

Answer 6

text within JS

Question 7

How is a string written in JS?

Answer 7

Strings are written with quotes. You can use single or double quotes