Nadohs

let arr = [1,2,3,4]


func & <T>(lhs:Array<T>,rhs:[Int]) -> T?{
    guard let index = rhs.first else{
        print("no index!")
        return nil
    }
    if index < 0{
        print("negative index")

Nadohs

###Subject: isEqual to replace == Equatable Requirement

Hi all,

I would like to propose changing the Equatable protocol to use isEqual(to:Self) -> Bool, defined inside of a type to replace the currently used operator == function, which is defined outside of the type.

###Reasoning:

1. Having the conforming function defined inside of the type is more intuitive, since in general functions required for conformance are defined within the type. It feels like an unnecesary detail for learners of Swift to have to stumble through.

Nadohs

private func comparableAttributes<T, U:Equatable>(first f:T, second s:T)->(T->U) -> U?{
    return { trans in
        let x = trans(f)
        let y = trans(s)
        return (x == y) ? nil : x
    }
}

If i do this it doesnt work...

Nadohs

infix operator ?= {  precedence 90 }

func ?= <T> (inout f: T, optional:T?){
    let _  = optional.flatMap{f = $0}
}

Usage looks like:

store.name ?= json["name"]?.string

Nadohs

Example Enums:

enum SessionChannel: Int {
    case NeedsAuthentication = 0
    case VerifiedUser = 1
}


enum SessionEvent {

Nadohs

Try writing this with both an option field and a hanging animation closure, with no completion...

        UIView.animateWithDuration(0.2, delay: 0, options: .CurveEaseOut, animations: { 
          ///DO ANIMATION STUFF
        }, completion: nil)
        

I should beable to do this

Nadohs

#todo sudoku ui
from sudoku_engine import Board
from guizero import App, PushButton



class SudView:
    board_code = None
    board_solution = None
    app_ref = None

Nadohs

// Single tab item view

struct TabItemView: View {
//    @State private var isSelected: Bool
    let imgName: String
    let title: String
    let isSelected: Bool
    let action:()->Void
    init(img:String, title:String, isSelected:Bool=false, action: @escaping ()->Void={}) {
        self.imgName = img

Nadohs

import Foundation
import UIKit

extension UIButton {
    func setImage(named: String) {
        if let image = UIImage(named: named) {
            self.setImage(image, for: .normal)
        }
    }
}