Tutorial by Examples: u

Using Oracle SQL’s NVL2() function, you can create a display column which contains one value if a field contains data and another value if a field does not contain data. For example, in an Entity search, turn the presence of a primary e-mail address into a text display column: NVL2( {email} , 'YES...

- hosts: all roles: - { role: myrole, become: yes } - myrole2

Firebase handles notifications differently when the app is in background (killed process) and when in foreground (active). When your app is in the background, notification messages are displayed in the system tray, and onMessageReceived is not called. For notification messages with a data payload...

Building image is not something specific to php, but in order to build the image that we described above, we can simply use docker build -t <Image name> . Once the image is built, you can verify the same using docker images Which would list out all the images installed in your system. ...

The rule that typedef declarations have the same syntax as ordinary variable and function declarations can be used to read and write more complex declarations. void (*f)(int); // f has type "pointer to function of int returning void" typedef void (*f)(int); // f is an alias for &...

The typedef keyword is a specifier, so it applies separately to each declarator. Therefore, each name declared refers to the type that that name would have in the absence of typedef. int *x, (*p)(); // x has type int*, and p has type int(*)() typedef int *x, (*p)(); // x is an alias for in...

C++11 The syntax of using is very simple: the name to be defined goes on the left hand side, and the definition goes on the right hand side. No need to scan to see where the name is. using I = int; using A = int[100]; // array of 100 ints using FP = void(*)(int); // pointer to...

<http:listener-config name="HTTP_Listener_Configuration" host="localhost" port="${http.port}" doc:name="HTTP Listener Configuration"/> <db:mysql-config name="MySQL_Configuration" host="${db.host}" port="${db.port}"...

With turbolinks, the traditional approach to using: $(document).ready(function() { // awesome code }); won't work. While using turbolinks, the $(document).ready() event will only fire once: on the initial page load. From that point on, whenever a user clicks a link on your website, turbolink...

It is very easy to disable turbolinks on specific links. According to the official turbolinks documentation: Turbolinks can be disabled on a per-link basis by annotating a link or any of its ancestors with data-turbolinks="false". Examples: // disables turbolinks for this one link ...

Application visits are initiated by clicking a Turbolinks-enabled link, or programmatically by calling Turbolinks.visit(location) By default, the visit function uses the 'advance' action. More understandably, the default behavior for the visit function is to advance to the page indicated by the ...

Slim can use withJson() that can return JSON responses with desired route and method $app = new \Slim\App(); $app->get('/api/person', function ($request, $response, $args) { $payload=[]; array_push($payload, array("name"=>"Bob" ,"birth-year"=>1993)); ar...

Go to the DOWNLOAD ANACONDA NOW page. Beneath the “Graphical Installer” buttons for Anaconda for macOS, there are command-line text links for Python versions 2.7 and 3.6. Download the command line installer for Anaconda with Python 2.7 or Anaconda with Python 3.6. Optional: Verify data integrity w...

$pwd Displays the present working directory. $who Displays all the users logged in. $who am i Shows the username of the current user. $date Displays the current system date $which <command> Shows the path of the specified command. For example "$which pwd" will sho...

Since 1.7 there's a java.util.BitSet class that provides simple and user-friendly bit storage and manipulation interface: final BitSet bitSet = new BitSet(8); // by default all bits are unset IntStream.range(0, 8).filter(i -> i % 2 == 0).forEach(bitSet::set); // {0, 2, 4, 6} bitSet.set(3);...

To allow multiple user registration on Ejabberd server, we need to configure file ejabberd.yml in Ejabberd latest versions. Configure ejabberd.yml like: in access_rules: add register: - allow register_from: - allow registration_timeout: - infinity mod_register: acc...

import android.content.Context; import android.os.Bundle; import android.support.constraint.ConstraintLayout; import android.support.constraint.ConstraintSet; import android.support.transition.TransitionManager; import android.support.v7.app.AppCompatActivity; import android.view.View; publ...

Optionals type, which handles the absence of a value. Optionals say either "there is a value, and it equals x" or "there isn't a value at all". An Optional is a type on its own, actually one of Swift’s new super-powered enums. It has two possible values, None and Some(T), where ...

Detailed instructions on getting ravendb set up or installed.

Run the following command one by one: npm install -g vulcanize crisper Use Vulcanize: Crunches all the HTML import files into a single file Crisper: Extracts inline js to its own file Note: Ubuntu users may need to prefix the above command with sudo.