Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift 2.0 Basics An Introduction to Swift Programming Working With Variables

var is an datatype ??

var ??

variables.swift
var str = "Hello World!!!"
str
var number = 56
number
number = 45
number

1 Answer

David Lin
David Lin
35,864 Points

var is a keyword which stands for "variable." Its type can be inferred or explicitly declared.

For example, the following is explicitly declared to be of type String:

var myString: String = "I am a explicitly typed String."

... while the following is inferred to be of type String:

var myString = "I am an inferred type String."