Tutorial by Examples: d

countdown timer using moment.js

HTML <div class="countdown"></div> JS var duration = moment.duration({ 'minutes': 5, 'seconds': 00 }); var timestamp = new Date(0, 0, 0, 2, 10, 30); var interval = 1; var timer = setInterval(function() { timestamp = new Date(timestamp.getTi...

Example Fluid Template File

Templates/Text.html <html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers" data-namespace-typo3-fluid="true"> <f:layout name="Default" /> <f:section name="Main"> <f:format.html>{data.bodytext}</f:format.html&gt...

Assume unchanged

If a file is changed, but you don't like to commit it, set the file as "Assume unchanged" Revert "Assume unchanged" Need some steps:

Multiple usernames and email address

Since Git 2.13, multiple usernames and email addresses could be configured by using a folder filter. Example for Windows: .gitconfig Edit: git config --global -e Add: [includeIf "gitdir:D:/work"] path = .gitconfig-work.config [includeIf "gitdir:D:/opensource/"] ...

Akka HTTP server: Hello World (Scala DSL)

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...

Remove Database connection correctly

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(&...

Embed vbscript code into batch file without using temporary files

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...

DEBUG

DEBUG command was used to create binaries/executabled from batch file. The command is still available in 32bit versions of windows , but is able to create binaries only with 16bit instructions with makes it unusable for 64bit machines. Now CERTUTIL is used for that purpose which allows to decode/enc...

APPEND

APPEND was command in msdos that allowed to use resource/media files like they are in the same directory.The command is still available in 32bit versions of windows but seems is not working. In some sources (including microsofts') it is pointed that the command is replaced by DPATH ,but it is not en...

BITSADMIN

BITSADMIN was used to transfer documents, download website, download files from websites, etc... This command is a deprecated command, and may be removed on next Windows updates. To prevent this issue, use the new Powershell BIT cmdlet. Here is a sample code utilizing BITSADMIN. @echo off Bitsa...

Wasd controls

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...

Hand controls

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...

Tracked controls

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...

Array : A Simple Data Structure

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...

Add React + ReactRouter

If necessary, change to your project directory cd MyAwesomeProject 1- Add react and react-router meteor npm install --save [email protected] [email protected] [email protected] 2- Edit client/main.html, and replace the content will be: <body> <div id="react-root"></div...

Step 3- Add Accounts

If necessary, change to your project directory cd MyAwesomeProject 1- Add accounts packages: meteor add accounts-base accounts-password react-meteor-data 2- Add the routes to login and signup pages in imports/startup/Routes.jsx The render() method will be as follows: render() { return ( ...

Add roles

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...

Basic Drop Table Syntax

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.

Nested Loops Test

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...

Concatenated loops Test

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...

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