Tutorial by Examples: me

On the server: var express = require('express'); var socketio = require('socket.io'); var app = express(); var server = http.createServer(app); var io = socketio(server); io.on('connect', function (socket) { socket.on('userConnected', socket.join); socket.on('userDisconnected', socke...

import {Http} from '@angular/http'; @Injectable() export class StudentService{ constructor(public http: Http){} getAllStudents(): Observable<Students[]>{ return this.http.get('assets/students.json') .map(res => res.json().data) } } notice ...

OnInit: this is really amazing thing in ionic2 or we can say in AngularJs2. With the same above example we can see what is ngOnInit is. So you are ready with the service method, now in your view/page you want that student list data available as soon as your view is going to appear, this should be th...

Add a new function called showGoogleForm and adapt the follow code to suit. Note for simplicity this example does not contain any error checking which should be added in a production environment. The url should look something like this: https://docs.google.com/forms/.../?usp=pp_url&entry.17391...

Before reading some code, it is important to undersand the main concepts that will help to program applications using json. Serialization: Process of converting a object into a stream of bytes that can be sent through applications. The following code can be serialized and converted into the previ...

CREATE TABLE Table1 ( id INT UNSIGNED NOT NULL, created_on DATE NOT NULL, PRIMARY KEY (id) ) CREATE TABLE Table2 ( id INT UNSIGNED NOT NULL, personName VARCHAR(255) NOT NULL, PRIMARY KEY (id) ) CREATE TABLE Table3 ( id INT UNSIGNED NOT NULL, accountName VA...

Basically to apply a theme for SearchView extracted as app:actionViewClass from the menu.xml, we need understand that it depends completely on the style applied to the underlying Toolbar. To achieve themeing the Toolbar apply the following steps. Create a style in the styles.xml <style name=&qu...

F() expressions can be used to execute arithmetic operations (+, -, * etc.) among model fields, in order to define an algebraic lookup/connection between them. Let model be: class MyModel(models.Model): int_1 = models.IntegerField() int_2 = models.IntegerField() Now lets assum...

To have a look of the different functionalities of the hybris platform, you can use the install recipes. For this, just download the HYBRISCOMMXXXX_X-XXXXXXXX.ZIP and extract it to you local device. Than go through the following steps: The <recipe_names> you can find under the folder \hybris\...

A wordpress theme consists two types of files. The basic files that each theme has and the files that define the theme's layout and functionality. This second group i'm going to call the theme specific files. The basic theme files The basic theme files are the files that are used to setup and regi...

runtime: php vm: true api_version: 1 runtime_config: document_root: web

This example is strictly a workaround since, currently there is no way to disable a behaviour known as ShiftMode. Create a function as such. public static void disableMenuShiftMode(BottomNavigationView view) { BottomNavigationMenuView menuView = (BottomNavigationMenuView) view.getChildAt(0); ...

Getting a single frame from a movie ( supports only AVC, H.264 in MP4, ISO BMF, Quicktime container ): int frameNumber = 150; BufferedImage frame = FrameGrab.getFrame(new File("filename.mp4"), frameNumber); ImageIO.write(frame, "png", new File("frame_150.png")); G...

Download the latest JAR or grab via Maven: <dependency> <groupId>com.squareup.okio</groupId> <artifactId>okio</artifactId> <version>1.12.0</version> </dependency> or Gradle: compile 'com.squareup.okio:okio:1.12.0'

Method 1 Go to your unit test class in the unit test project Write a unit test [Testclass] public class UnitTest1 { [TestMethod] public void TestMethod1() { //Arrange ApplicationToTest.Calc ClassCalc = new ApplicationToTest.Calc(); int expectedResul...

Override Pagination Style: Every available pagination style can be overridden by creating a new class that inherits from one of the available styles and then alters its parameters: class MyPagination(PageNumberPagination): page_size = 20 page_size_query_param = 'page_size' max_page...

We can perform a GROUP BY ... COUNT or a GROUP BY ... SUM SQL equivalent queries on Django ORM, with the use of annotate(), values(), order_by() and the django.db.models's Count and Sum methods respectfully: Let our model be: class Books(models.Model): title = models.CharField() ...

Lets assume that we have a complex api, with many generic views and some generic viewsets. We want to enable PageNumberPagination to every view, except one (either generic view or viewset, does not make a difference) for which we want a customized case of LimitOffsetPagination. To achieve that we n...

Installing The Node Module You can install this module by running the command below in your project directory: npm install twilio Sending Your Message const accountSID = ''; // Obtained from the Twilio Console const authToken = ''; // Obtained from the Twilio Console const client = requi...

This example shows you how to implement proxy classes for your Minecraft Mod Application, which are used to initialize your mod. First of all you will need to implement the base CommonProxy.java class which contains the 3 mainly used method: public class CommonProxy { public void preInit(FMLP...