saru2020

Videos

• Introduction to Functional Programming Johannes Weiß - https://vimeo.com/100786088
• ReactiveCocoa at MobiDevDay Andrew Sardone - https://vimeo.com/65637501
• The Future Of ReactiveCocoa Justin Spahr-Summers - https://www.youtube.com/watch?v=ICNjRS2X8WM
• Enemy of the State Justin Spahr-Summers - https://www.youtube.com/watch?v=7AqXBuJOJkY
• WWDC 2014 Session 229 - Advanced iOS Application Architecture and Patterns Andy Matuschak - https://developer.apple.com/videos/play/wwdc2014/229/
• Functioning as a Functionalist Andy Matuschak - https://www.youtube.com/watch?v=rJosPrqBqrA
• Controlling Complexity in Swift Andy Matuschak - https://realm.io/news/andy-matuschak-controlling-complexity/

saru2020

#!/bin/sh

git filter-branch --env-filter '
OLD_EMAIL="[email protected]"
CORRECT_NAME="Your Correct Name"
CORRECT_EMAIL="[email protected]"
if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$CORRECT_NAME"
    export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"

saru2020

var a = 2
var b = 4
func add(x, y) {
    return x + y
}

saru2020

func add(x, y) {
    return x + y
}

saru2020

//Imperative Programming
var total = 0
for i in 1...10 {
    total += i
}
print("Imperative: total: ", total); // prints 55

saru2020

//Functional Programming
func sum(start: Int, end: Int, total: Int) -> Int {
    if (start > end) {
        return total;
    }
    return sum(start: start + 1, end: end, total: total + start)
}
print("Functional: total: ", sum(start: 1, end: 10, total: 0)); // prints 55

saru2020

struct Contact {
    var firstName: String
    var lastName: String
    var email: String
    var age: Int
    var duration: Int
}

saru2020

let contacts = [
    Contact(firstName: "first", lastName: "1", email: "[email protected]", age: 20, courseDuration: 12),
    Contact(firstName: "Second", lastName: "2", email: "[email protected]", age: 22, courseDuration: 16),
    Contact(firstName: "Third", lastName: "3", email: "[email protected]", age: 30, courseDuration: 22)
]

saru2020

//Get just the name of the contacts into a separate array
//Imperative Programming
var contactNamesImp = [String]()
for contact in contacts { // for each
    contactNamesImp.append(contact.firstName)
}
print(contactNamesImp)

saru2020

//Functional Programming
let contactNames = contacts.map({    
    return $0.firstName + " " + $0.lastName
})
print(contactNames)