Tutorial by Topics: m

If you want to add an Admin panel to your rails application, it's just matter of minutes. Open gem file and writer gem 'rails_admin', '~> 1.0' bundle install rails g rails_admin:install it will ask you about the admin route if you want to go with the default press Enter. Now go app/conf...

When using async callback we need to consider scope. Especially if inside a loop. This simple article shows what not to do and a simple working example.

The mask element allows you to "clip" with soft edges. You can compose masks from multible elements including text. Everything of a mask that is white will be completely opaque. Everything that is black will be completely transparent. Values between white and black will be semi transparent...

mock.Setup(expression).Returns(value) //Whenever called the method in the expression will return value ParameterDetailsexpressionLambda expression that specifies the method invocation.

You can use Pentaho Data Integration (Kettle) to Transfer Data from One Database to another. Its very easy as the transformation is automatically created just by creating the connection.and it can transfer Lacs of records very quickly.

Sometimes is more usefull make a call to a model's method in our view, so this is a way to make it

JSF as a markup language, supports comments of some parts of code, but we have be carefully, because if we use a normal HTML comment code like this: <!-- I want to comment the next button --> <!-- <h:commandButton value="Push" onclick="alert('He...

If you commit sensitive data, such as a password or SSH key into a Git repository, you can remove it from the history. To entirely remove unwanted files from a repository's history you can use either the git filter-branch command or the BFG Repo-Cleaner. Tell your collaborators to rebase, ...

This example shows how to create a ViewModel and a View within the MVVM pattern and WPF, and how to bind the two together, so that each is updated whenever the other is changed.

This section provides an overview of what mqtt is, and why a developer might want to use it. It should also mention any large subjects within mqtt, and link out to the related topics. Since the Documentation for mqtt is new, you may need to create initial versions of those related topics.

Input and Output in scheme is usually handled trough ports. A port is a data structure which is used to interact with the world outside Scheme. A Port isn't limited to files but can be used to read/write to sockets. In some ways, the port object is some kind of universal object that can not onl...

COMMMENT main purpose is to define or change a comment on database object. Only a single comment(string) can be given on any database object.COMMENT will help us to know what for the particular database object has been defined whats its actual purpose is. The rule for COMMENT ON ROLE is that you m...

This section provides an overview of what automation is, and why a developer might want to use it. It should also mention any large subjects within automation, and link out to the related topics. Since the Documentation for automation is new, you may need to create initial versions of those rel...

The data.table package has undergone a number of changes and innovations over time. Here are some potential pitfalls that can help users looking at legacy code or reviewing old blog posts.

A notorious common question is "how to send notifications from device to device", sadly the answer is: you can't. FCM needs to be triggered in order to send push notifications. That can be done in 3 different ways: Directly in the Firebase web console Setting a Firebase Functions li...

C++, like C, has a long and varied history regarding compilation workflows and build processes. Today, C++ has various popular build systems that are used to compile programs, sometimes for multiple platforms within one build system. Here, a few build systems will be reviewed and analyzed. Current...