Tutorial by Examples: l

You can dynamically fork a flow in multiple subflows using groupBy. The continuing stages are applied to each subflow until you merge them back using mergeSubstreams. val sumByKey: Flow[(String, Int), Int, NotUsed] = Flow[(String, Int)]. groupBy(Int.maxValue, _._1). //forks the flow ...

The following app will start an HTTP server listening on port 8080 that returns Hello world on GET /hello/world import akka.actor.ActorSystem import akka.http.scaladsl.Http import akka.http.scaladsl.server.Directives._ import akka.http.scaladsl.server._ import akka.stream.ActorMaterializer i...

If we want to remove some database connection from the list of database connections. we need to use QSqlDatabase::removeDatabase(),however it's a static function and the way it work is a little wired. // WRONG WAY QSqlDatabase db = QSqlDatabase::database("sales"); QSqlQuery query(&...

If you want to comment part of your code, then comment blocks may be useful. Comment block starts with a %{ in a new line and ends with %} in another new line: a = 10; b = 3; %{ c = a*b; d = a-b; %} This allows you fo fold the sections that you commented to make the code more clean and comp...

Here's an example with the technique(hack) invented by the dostips forums' user Liviu: @echo off echo Printed by CMD.EXE cscript //nologo "%~f0?.wsf" //job:JS //job:VBS exit /b %errorlevel% ----END OF BATCH CODE--- <package> <job id="JS"> <script...

<build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>project-info-reports</artifactId> <version>2.9</version> <executions> ...

The wasd-controls component controls an entity with the W, A, S and D or arrow keyboard keys. The wasd-controls component is commonly attached to an entity with the camera component. <a-entity camera look-controls wasd-controls></a-entity> For azerty keyboards, you could use Z, Q, S...

The look-controls component: Rotates the entity when we rotate a VR head-mounted display (HMD). Rotates the entity when we click-drag mouse. Rotates the entity when we touch-drag the touchscreen. The look-controls component is usually used alongside the camera component. <a-entity came...

A-Frame 0.x0.3 A-Frame provides an implementation for supporting multiple types of 6DoF controllers (Vive, Oculus Touch) via the hand-controls component. The hand-controls component is primarily for 6DoF controllers since it’s geared towards room scale interactions such as grabbing objects. The han...

A-Frame 0.x0.3 The tracked-controls component is A-Frame’s base controller component that provides the foundation for all of A-Frame’s controller components. The tracked-controls component: Grabs a Gamepad object from the Gamepad API given an ID or prefix. Applies pose (position and orien...

An Array Data Structure is used to store similar objects (or data values) in a contiguous block of memory. Array Data Structure has fixed size, which determines the number of data values that can be stored in it. Array : The C++ Way In C++ Programming Language, we can declare a static arr...

For example, consider the following that sets the contents of $@ to the contents of a given variable: a=(1 2 3) eval set -- "${a[@]}" This code is often accompanied by getopt or getopts to set $@ to the output of the aforementioned option parsers, however, you can also use it to creat...

1- Add roles package ( https://github.com/alanning/meteor-roles) meteor add alanning:roles 2- Create some roles constants. In file imports/api/accounts/roles.js const ROLES = { ROLE1: 'ROLE1', ROLE2: 'ROLE2', ADMIN: 'ADMIN' }; export default ROLES; 3- I'll not show how to add/upda...

db2 connect to {databaseName} db2 drop table {schema}.{table} db2 connect reset The schema is not necessary if it matches the current user name. The "db2" prefix is not necessary if you are already in a DB2 command prompt.

These are loops in which their loop body contains no other loops (the innermost loop in case of nested). In order to have loop coverage, testers should exercise the tests given below. Test 1 :Design a test in which loop body shouldn’t execute at all (i.e. zero iterations) Test 2 :Design a test in...

A nested loop is a loop within a loop. The outer loop changes only after the inner loop is completely finished / interrupted. In this case, test cases should be designed in such a way that Start at the innermost loop. Set all the outer loops to their minimum values. Perform Simple loop testing o...

Two loops are concatenated if it’s possible to reach one after exiting the other on same path from entrance to exit. Sometimes these two loops are independent to each other. In those cases we can apply the design techniques specified as part of single loop testing. But if the iteration values in on...

Ubuntu # sudo apt-get update # sudo apt-get install vlc vlc-plugin-pulse mozilla-plugin-vlc Windows Recommended The normal and recommended way to install VLC on a Windows operating system is via the installer package.(Download Link)

<template> <div class="nice">Component {{title}}</div> </template> <script> export default { data() { return { title: "awesome!" }; } } </script> <style> .nice { background-col...

Step 1: Open a Document Step 2 Option A: Press Alt + F11 This is the standard shortcut to open the VBE. Step 2 Option B: Developer Tab --> View Code First, the Developer Tab must be added to the ribbon. Go to File -> Options -> Customize Ribbon, then check the box for developer. Th...