Swift Basics — Glossary: Week 4
These are the terms discussed in Swift Basics: Week 4
Swift: — A programming language created by Apple
Xcode: — A Mac App used to create Apple software
Playground: — A file used by Xcode to place Swift code in
Syntax: — The arrangement of words and symbols to create well-formed statements in a programming language
Constant: — A stored piece of information represented by a name, this information cannot be changed, only copied
Variable: — A stored piece of information represented by a name, this information can be changed
Data Type: — The type of information that is stored in a constant/variable
Integer: — A data type that represents a whole number
Float: — A data type that represents a decimal number
Double: — A data type that represents a decimal number with “double” the precision of a Float
String: — A data type that represents words and sentences
Casting: — Changing a variable/constant from one data type to another
Collection Type: — A constant or variable that holds a collection of constants or variables
Array: — An ordered collection of constants/variables, each item in the collection is represented by a number
Dictionary: — An unordered collection of constants/variables, each item in the collection is represented by a string
