radex

// Option 1: if..elseif + optional unwrapping conditions

private func handleNotificationAction(id: String?, userInfo: [NSObject: AnyObject], responseInfo: [NSObject: AnyObject]?, completion: () -> Void) {
    let taskId = userInfo["extra"]?["task_hash"] as? String
    let projectId = userInfo["extra"]?["project_hash"] as? String
    let comment = responseInfo?["UIUserNotificationActionResponseTypedTextKey"] as? String
    
    if id == "comment", let task = taskId, comment = comment where !comment.isEmpty {
        
    } else if id == "invitation_accept", let project = projectId {

chrisschreiner

// APOD.swift
// Test with ReactiveCocoa 4
//
// Created by Chris Patrick Schreiner on 17-11-2015.

import ReactiveCocoa
import Result
import XCPlayground

XCPlaygroundPage.currentPage.needsIndefiniteExecution = true

mikeabdullah

- (void)encodeRestorableStateWithCoder:(NSCoder *)coder {
	[super encodeRestorableStateWithCoder:coder];
	
	[coder encodeObject:self.contentViewController
	             forKey:@"contentViewController"];
}

mikeabdullah

- (void)viewWillDisappear:(BOOL)animated {
  [super viewWillDisappear:animated];
  
  UIViewController *root = self.presentingViewController.presentedViewController;
  if (root.isBeingDismissed) {
    [self.view endEditing:YES];
  }
}

rnapier

// Claim: flatMap<Result> and continueWith are the the same function

//
// Begin with flatMap and its dependencies
//
func flatMap<T,U>(x: Result<T>, f: T -> Result<U>) -> Result<U> {
  return flatten(map(x, f))
}

func map<T, U>(x: Result<T>, f: T -> U) -> Result<U> {

NSUserDefaults is kinda like git

Note that like all analogies, this is not a perfect one. I find it helps me think about it though. Also, don't try to draw conclusions about performance from this analogy :)

-[NSUserDefaults setObject:forKey:] is like...
<edit file to add key and value>
git add file
git commit
dispatch_after(some time, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
    [[NSUserDefaults standardUserDefaults] synchronize]
});

chrisschreiner

(import 'java.awt.Color)

(def *default-color-fraction* 0.2)

(def *default-blend-fraction* 0.5)

(defn- format-hex [c]
  (str "#" (format "%02x%02x%02x"
                   (.getRed c)
                   (.getGreen c)

michalmarczyk

(defn merge-seqs
  "Merges sorted seqs of Comparable objects as in merge sort. Uses
  left-to-right precedence order among the input seqs when duplicates
  are present. Uses clojure.core/compare."
  ([xs ys]
     (lazy-seq
      (if (or (empty? xs) (empty? ys))
        (concat xs ys)
        (let [x (first xs)
              y (first ys)]