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/// This is the stateful widget that the main application instantiates.
class MyStatefulWidget extends StatefulWidget {
  const MyStatefulWidget({Key key}) : super(key: key);

  @override
  _MyStatefulWidgetState createState() => _MyStatefulWidgetState();
}

/// This is the private State class that goes with MyStatefulWidget.

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httpCall(url: 'http://worldtimeapi.org/api/timezone/Europe/Rome') { (result) in
  print(result)
}

func httpCall(url: String, completion: @escaping (_: [String: Any]) -> Void) {
  let url = URL(string: url)!

  let task = URLSession.shared.dataTask(with: url) {(data, response, error) in
    guard let data = data else { return }

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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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Chill the lion

WebGL experiment using ThreeJS. Move the fan and press to make wind, the lion will surely appreciate.

A Pen by Karim Maaloul on CodePen.

License.

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ListView lv = (ListView)findViewById(R.id.myListView);  // your listview inside scrollview
lv.setOnTouchListener(new ListView.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            int action = event.getAction();
            switch (action) {
            case MotionEvent.ACTION_DOWN:
                // Disallow ScrollView to intercept touch events.
                v.getParent().requestDisallowInterceptTouchEvent(true);
                break;

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// file "NSDictionary+UrlEncoding.m"
#import "NSDictionary+UrlEncoding.h"

// helper function: get the string form of any object
static NSString *toString(id object) {
  return [NSString stringWithFormat: @"%@", object];
}

// helper function: get the url encoded string form of any object
static NSString *urlEncode(id object) {

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describe('/blog', function() {

  it('returns blog posts as JSON', function(done) {
    api.get('/blog')
    .set('x-api-key', '123myapikey')
    .auth('correct', 'credentials')
    .expect(200)
    .expect('Content-Type', /json/)
    .end(function(err, res) {
      if (err) return done(err);

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#!/bin/sh

rpm -Uih https://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
curl -L https://get.rvm.io | bash -s stable
rvm install 2.0.0
rvm use 2.0.0@global --default

# for chinese user, if you have a wonderful speed ignore this part
# to have a faster download speed
# switch gem source to ruby.taobao.org

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{
  "country": {
    "iso_code": "CO",
    "names": {
      "pt-BR": "Colômbia",
      "es": "Colombia",
      "ru": "Колумбия",
      "en": "Colombia",
      "zh-CN": "哥伦比亚",
      "fr": "Colombie",

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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os
from twisted.application import service
from twisted.web import server, static
from twisted.web.resource import Resource
from twisted.web.wsgi import WSGIResource
from twisted.internet import reactor
from flask.views import MethodView