clairefields15/Claire_Fields_markdownPractice.md

## Claire_Fields_markdownPractice.md

      
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    Beginner's Guide to Data Types

Once you read this guide you will be well on your way to understanding the 4 different data types and how to use them in Javascript!

1. String


A String is zero or more characters written within quotations.
Some examples of strings are:

var favoriteFlower = "Rose"

var typeOfTea = "Black"

var myDogsName = "Jasmine"

2. Boolean


Boolean data represents one of two values: TRUE or FALSE.
It is typically used in combination with Boolean Logic to create if() statements in your code, such as:

var isOver21 = TRUE;
var isNotOver21 = FALSE;
if (isNotOver21) {
  alert ('You may not enter this website.');
}
3. Integers and Floats


Integers are whole numbers (not fractions) that can be positive, negative or zero.
Such as:

var windchill = -25

var myAge = 30
Floats are numbers that contain decimal points.
Such as:

var savingsRate = 0.01

var exactTemp = 98.6

4. Array


Arrays represent collections of data. They allow you to store multiple values in a single variable.
Some examples of arrays:

var fruits = ["Banana", "Apple", "Cherry"]

var numbers = [4, 6, 21, 43, 25, 28]

var latteIngredients = ["Espresso", "Milk", "Foam", "Sugar"]

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