I apologize if I have overlooked one here. This salesforce website is great but massive and I don't see a swift walkthrough, I did find this one
https://developer.salesforce.com/docs/atlas.en-us.mobile_sdk.meta/mobile_sdk/ios_swift_intro.htm#!
and I am glad to see promise kit here but I don't have a grasp of some simple tasks I will need like

1. how do I get all of the records in the tutorial app
2. how can I sort my results 
every example I see assumed I already have a user like this:

restApi.Promises.query(soql: "SELECT Id,FirstName,LastName FROM User"

So its those sort of basic concepts I'd like to learn before I start my SalesForce project.
The tutorial that comes with forceios is written in objective C and I'm having trouble following it. 
Any help on how to get the basics of Salesforce with swift would be greatly appreciated.

Thank you!

Warren

How can i get only text from words
EX:  Sultan Road
output : Road