Getting Started With Programming

deffinitons and required data

data types

numbers, strings, booleans

numbers

1, 2, 3, etc.

strings

anything in quotes like this

booleans

true or false

comparison operators

>, <, >=, <=, ===, !=, they compare two data types to return a boolean

conditional statements

following code is only executed if true

modulo operator

returns the remainder of a division operation

length

returns the number of characters in a string

substring()

returns part of the preceding string

variables

variables store data and must be preceded by var

var

denotes a variable

other syntax stuff

• console.log=print or echo
• comments start with //
• true and false are lower case