Tutorial by Examples: sin

Check connection using ConnectivityManager

public static boolean isConnectedNetwork (Context context) { ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); return cm.getActiveNetworkInfo () != null && cm.getActiveNetworkInfo ().isConnectedOrConnecting (); ...

Android • Check Data Connection

A basic SQL select- List all rows in a table.

SELECT * FROM MY_TABLE

db2 • dashDB

Using informats to read data

Informats are used to tell SAS how to read in the data and are identified with an informat statement. data test; infile test.csv; informat id $6. date mmddyy10. cost comma10.2 ; input @1 id @7 date @20 cost ; run; Informats and Format...

sas • SAS Formats

Accessing variables

In Twig templates variables can be accessed using double curly braces notation {{ variableName }}. Basic example of greeting user <!DOCTYPE html> <html> <body> <span>Hello {{ name }}</span> </body> </html> Accessing array elements Twig as ...

twig • Basic template syntax

Find a PowerShell module using a pattern

To find a module that ends with DSC Find-Module -Name *DSC

PowerShell • Package management

Cache Using APC Cache

The Alternative PHP Cache (APC) is a free and open opcode cache for PHP. Its goal is to provide a free, open, and robust framework for caching and optimizing PHP intermediate code. installation sudo apt-get install php-apc sudo /etc/init.d/apache2 restart Add Cache: apc_add ($key, $value , $t...

PHP • Cache

Hello World Example (Basic) and with using a view

The basic example Open routes/web.php file and paste the following code in file: Route::get('helloworld', function () { return '<h1>Hello World</h1>'; }); here 'helloworld' will act as page name you want to access, and if you don't want to create blade file and still want to ...

Laravel • Getting started with laravel-5.3

Using Interfaces for Polymorphism

The primary reason to use interfaces to achieve polymorphism and provide developers to implement on their own way in future by implementing interface's methods. Suppose we have an interface and three classes: interface Connector{ doConnect(): boolean; } This is connector interface. Now we...

TypeScript • Interfaces

Using remote by setting the progress bar

const { remote } = require("electron"); // <- The Node.js require() function is // added to JavaScript by electron function setProgress(p) { // p = number from 0 to 1 const currentWindow = remote.getCurrentWindow(); currentWindow.setProgre...

electron • Remote function - use Electron functions in JavaScript

Using remote by setting window to fullscreen

const { remote } = require("electron"); // <- The Node.js require() function is // added to JavaScript by electron function fullscreen(f) { // p = false or true const currentWindow = remote.getCurrentWindow(); currentWindow.maximize(); } ...

electron • Remote function - use Electron functions in JavaScript

Closing the current browser window

Switch to the new opened tab. Close the current windows(In this case the new Tab). Switch back to first window. PROTRACTOR: browser.getAllWindowHandles().then(function (handles) { browser.driver.switchTo().window(handles[1]); browser.driver.close(); browser.driver.switchTo().window(...

selenium-webdriver • Interacting with the Browser Window(s)

Using GTM to configure GA events

GTM simplifies the whole process of managing tags.In GTM terminology We put a GTM javascript snippet on the concerned page,in portal_normal.vm in custom theme in liferay, containing the GTM id and a data layer structure(if needed) to map values from page to variables Corresponding to data layer ...

liferay • Configure Google Tag manager(GTM) in liferay

Location Services in the Background

To use standard location services while the application is in the background you need first turn on Background Modes in the Capabilities tab of the Target settings, and select Location updates. Or, add it directly to the Info.plist. <key>NSLocationAlwaysUsageDescription</key> <st...

iOS • Core Location

Change column display name in list view using CSR

There are cases when you need to change Display Name of column in a list view e.g. Column Name showing in the view is "IsApprovalNeeded" and you want to appear as "Is Approval Needed?". You can, of course change the display name of a column by changing the column title in list ...

sharepoint • SharePoint 2013 Client Side Rendering

Single type deconstructed argument

type ProjectIdType = ProjectId String getProject : ProjectIdType -> Cmd Msg getProject (ProjectId id) = Http.get <| "/projects/" ++ id

Elm Language • Pattern Matching

Passing column names as argument of a function

Sometimes one would like to pass names of columns from a data frame to a function. They may be provided as strings and used in a function using [[. Let's take a look at the following example, which prints to R console basic stats of selected variables: basic.stats <- function(dset, vars){ f...

R Language • Writing functions in R

Simple component using webview

import React, { Component } from 'react'; import { WebView } from 'react-native'; class MyWeb extends Component { render() { return ( <WebView source={{uri: 'https://github.com/facebook/react-native'}} style={{marginTop: 20}} /> ); } } ...

react-native • WebView

A basic example of using a custom tag without any Java code

In order to create an use a custome tag,we need to follow couple of steps: Create a tag file,defining the attributes used by it and any variables which will be used by the tag a. The attributes need to have a name,their type and and required field with a boolean value b. The variables will be...

jsp • Creating custom tag libraries using JSP 2.0(Without java classes)

Upload IPA file using Application Loader

Once the IPA file is generated, open Xcode, navigate to developer tools and open Application Loader. If you have multiple accounts in your Xcode, you will be asked to choose. Naturally pick the one you used for code signing in the first step. Pick "Deliver your app" and upload the code....

iOS • App Submission Process

Object-based programming using structs

Structs may be used to implement code in an object oriented manner. A struct is similar to a class, but is missing the functions which normally also form part of a class, we can add these as function pointer member variables. To stay with our coordinates example: /* coordinates.h */ typedef stru...

C Language • Structs