Tutorial by Examples: re

Often you want to lock the entire object while you perform multiple operations on it. For example, if you need to examine or modify the object using iterators. Whenever you need to call multiple member functions it is generally more efficient to lock the whole object rather than individual member fu...

You can define the signing configuration to sign the apk in the build.gradle file. You can define: storeFile : the keystore file storePassword: the keystore password keyAlias: a key alias name keyPassword: A key alias password You have to define the signingConfigs block to create a signin...

We can create dynamic component and get the instances of component into an array and finally rendered it on template. For example, we can can consider two widget component, ChartWidget and PatientWidget which extended the class WidgetComponent that I wanted to add in the container. ChartWidget.ts ...

The Roslyn Quoter A tool for converting an sample C# program to syntax tree API calls. The tool itself can be found here. Enhanced source viewer An easy way to view the Roslyn source code can be found here.

Add the hyperloop gem to your rails (4.0 - 5.1) Gemfile bundle install Add the hyperloop manifest to the application.js file: // app/assets/javascripts/application.js ... //= hyperloop-loader Create your react components, and place them in the hyperloop/components directory # app/hyperl...

To find your existing .cs files, right click on the project in your instance of Visual Studio, and click Open Folder in File Explorer. Visual Studio --> Your current project (Windows Form) --> Solution Explorer --> Project Name --> Right Click --> Add --> Existing Item --> ...

The TestProducerfrom this example produces Integerobjects in a given range and pushes them to its Subscriber. It extends the Flowable<Integer> class. For a new subscriber, it creates a Subscription object whose request(long) method is used to create and publish the Integer values. It is impor...

Required External Jar: mysql-connector-java-5.1.40-bin.jar to connect to Data Base. Add this jar by right clicking the project -->Build Path--> Add external Archieve. Create the Flow as Flowing 2) Database Connector Configuration: Select MySQL as your database by double clicking the Data...

To fetch large data we can use generators in pandas and load data in chunks. import pandas as pd from sqlalchemy import create_engine from sqlalchemy.engine.url import URL # sqlalchemy engine engine = create_engine(URL( drivername="mysql" username="user", ...

GitHub Flavored Markdown (sometimes abbreviated to GFM) makes it easier to work with markdown on GitHub.com. Key features of GFM include: code indentation task list support easy GitHub issue referencing automatic GitHub username and SHA detection automatic url detection emoji support GFM...

(defrecord Logline [datetime action user id]) (def pattern #"(\d{8}-\d{2}:\d{2}:\d{2}.\d{3})\|.*\|(\w*),(\w*),(\d*)") (defn parser [line] (if-let [[_ dt a u i] (re-find pattern line)] (->Logline dt a u i))) Define a sample line : (def sample "20170426-17:20:04...

About this Project This is simple boilerplate project. This post will guide you to set up the environment for ReactJs + Webpack + Bable. Lets get Started we will need node package manager for fire up express server and manage dependencies throughout the project. if you are new to node package man...

app.module.ts Add these into your app.module.ts file to use reactive forms import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { FormsModule, ReactiveFormsModule } from '@angular/forms'; import { AppComponent } from './app.component'; @...

I found this to be the way to properly nest children routes inside the app.routing.ts or app.module.ts file (depending on your preference). This approach works when using either WebPack or SystemJS. The example below shows routes for home, home/counter, and home/counter/fetch-data. The first and l...

One common scenario is to wait for a number of requests to finish before continuing. This can be accomplished using the forkJoin method. In the following example, forkJoin is used to call two methods that return Observables. The callback specified in the .subscribe method will be called when both O...

The following example demonstrates a simple HTTP GET request. http.get() returns an Observable which has the method subscribe. This one appends the returned data to the posts array. var posts = [] getPosts(http: Http): { this.http.get(`https://jsonplaceholder.typicode.com/posts`) ....

This is a just a simple example of how to use GooglePlay Service's ActivityRecognitionApi. Although this is a great library, it does not work on devices that do not have Google Play Services installed. Docs for ActivityRecognition API Manifest <!-- This is needed to use Activity Recognition! -...

PathSense activity recognition is another good library for devices which don't have Google Play Services, as they have built their own activity recognition model, but requires developers register at http://developer.pathsense.com to get an API key and Client ID. Manifest <application andro...

To initialise chat service use: QBChatService.setDebugEnabled(true); // enable chat logging QBChatService.setDefaultPacketReplyTimeout(10000);//set reply timeout in milliseconds for connection's packet. Can be used for events like login, join to dialog to increase waiting response time from ...

Sherlock captures all your crashes and reports them as a notification. When you tap on the notification, it opens up an activity with all the crash details along with Device and Application info How to integrate Sherlock with your application? You just need to add Sherlock as a gradle dependency i...