bonus tip: for more darkness > https://darkreader.org/
struct SearchBar : View { | |
@Binding var searchText: String | |
var body: some View { | |
HStack { | |
Image(systemName: "magnifyingglass").foregroundColor(.secondary) | |
TextField( | |
$searchText, | |
placeholder: Text("Search")) { | |
UIApplication.shared.keyWindow?.endEditing(true) |
extension Dictionary { | |
subscript<T: RawRepresentable>(_ key: T) -> Value? where T.RawValue == Key { | |
return self[key.rawValue] | |
} | |
} | |
// Usage: | |
enum Type: Int { | |
case easy | |
} |
Author: Chris Lattner
- Proposal: SE-XXXX
- Authors: Chris Lattner, Joe Groff
Modern Cocoa development involves a lot of asynchronous programming using closures and completion handlers, but these APIs are hard to use. This gets particularly problematic when many asynchronous operations are used, error handling is required, or control flow between asynchronous calls gets complicated. This proposal describes a language extension to make this a lot more natural and less error prone.
This paper introduces a first class Coroutine model to Swift. Functions can opt into to being async, allowing the programmer to compose complex logic involving asynchronous operations, leaving the compiler in charge of producing the necessary closures and state machines to implement that logic.
Most of the manifesto is background and detailed definitions -- if you're confused or want details, read the manifesto!
https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170213/032155.html
Note also that manifestos aren't complete proposals -- syntax and details may change!
One piece of background: inout
is kinda complicated because it can be used on computed properties -- foo(&val.x)
might be sugar for
#!/bin/bash | |
f=$(pwd) | |
sips --resampleWidth 512 "${f}/${1}" --out "${f}/iTunesArtwork" | |
sips --resampleWidth 1024 "${f}/${1}" --out "${f}/iTunesArtwork@2x" | |
sips --resampleWidth 20 "${f}/${1}" --out "${f}/Icon-20.png" | |
sips --resampleWidth 40 "${f}/${1}" --out "${f}/[email protected]" | |
sips --resampleWidth 60 "${f}/${1}" --out "${f}/[email protected]" |
-- CountOpenSafariTabs.scpt | |
-- Author: Chad Armstrong | |
-- Date: 13 May 2016 | |
-- Description: Count the number of open tabs in Safari | |
-- To run from CLI: osascript CountOpenSafariTabs.scpt | |
tell application "Safari" | |
--Variables | |
set winlist to every window |
//Protocal that copyable class should conform | |
protocol Copying { | |
init(original: Self) | |
} | |
//Concrete class extension | |
extension Copying { | |
func copy() -> Self { | |
return Self.init(original: self) | |
} |
import UIKit | |
let vc = UIViewController() | |
vc.view.backgroundColor = .whiteColor() | |
vc.navigationItem.title = "This is a view controller" | |
let searchController = UISearchController(searchResultsController: nil) | |
//searchController.searchBar.barTintColor = UIColor(red:0.16, green:0.45, blue:0.72, alpha:1) |