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React Native App Creation Recipe

This is a step-by-step guide to create React Native app.

You will get an application which has;

• TypeScript
• Linting
• Formatting
• Testing

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import Foundation

func dispatch_async_batch(tasks: [() -> ()], limit: Int, completion: (() -> ())?) {
    if tasks.count > 0 || completion != nil {
        let q = dispatch_queue_create("dispatch_async_batch", DISPATCH_QUEUE_CONCURRENT);
        let sema = dispatch_semaphore_create(limit);

        dispatch_async(q, {
            for task in tasks {
                dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER)

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import Foundation

func fatalError<T>(@autoclosure message: () -> String = "", file: StaticString = #file, line: UInt = #line) -> T {
    fatalError(message(), file: file, line: line)
}

// Demo

protocol ResultType {

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class API {
    
    let uri = "https://api.com/endpoint" // replace your api endpoint (json)
    
    func getData(completionHandler: ((NSArray!, NSError!) -> Void)!) -> Void {
        let url: NSURL = NSURL(string: uri)!
        
        let ses = NSURLSession.sharedSession()
        let task = ses.dataTaskWithURL(url, completionHandler: {data, response, error -> Void in
            

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// Use Parse.Cloud.define to define as many cloud functions as you want.
// For example:
Parse.Cloud.define("hello", function (request, response) {
    response.success("Hello world!");
});
 
Parse.Cloud.define("userWithEmailExists", function (request, response) {
    var email = request.params.email;
    if (email != null && email !== "") {
        email = email.trim();

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class Brew {
    var temp: Float = 0.0
}

class BrewViewModel : NSObject {
    var brew = Brew()
    dynamic var temp: Float = 0.0 {
        didSet {
            self.brew.temp = temp
        }

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#
# python drive.py "origin" ["waypoint" ... ] "destination"
#
# i.e. python drive.py "Union Square, San Francisco" "Ferry Building, San Francisco" 'Bay Bridge' SFO

import sys, json, urllib2, md5, os.path, pprint
from math import radians, sin, cos, atan2, pow, sqrt
from urllib import quote_plus
from xml.sax.saxutils import escape
from optparse import OptionParser

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The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

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// Start here https://developers.facebook.com/docs/getting-started/getting-started-with-the-ios-sdk/
// Install the Facebook SDK, get it linked up, create an app, and get that setup correctly 
// in your info.plist, appDelegate, and build settings.  

//Note: This example uses ARC. If you aren't using ARC, made sure to release/retain objects as needed.


//Now for the fun part.

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