#Programming (Програмування)
166 posts in category «Programming (Програмування)»
Notes on programming in Ukrainian: coding languages, algorithms, the latest technologies and other useful information for developers.
ZOMBIE in Ruby. What is it?
Ruby is a programming language. Everything is clear here. In the code of this language, you may encounter the term - ZOMBIE. What…
Analyzing the PG::ObjectInUse error (Ruby on Rails)
Sometimes during development, you may encounter the error PG::ObjectInUse: ERROR.For example: rake db:drop; It will show us the f…
We fix ActiveRecord::ProtectedEnvironmentError in the local environment.
Locally, you may see the error ActiveRecord::ProtectedEnvironmentError if you attempt to access an environment that is protected,…
What are HTTP Client Hints?
HTTP Client Hints (client hints) are a web browser mechanism that transmits information about the capabilities and limitations of…
What is entropy?
Entropy is a concept from information theory and statistics that is used to measure the degree of uncertainty or disorder in a sy…
Accept - HTTP header, what is it for and how does it work?
Accept is one of the HTTP headers. It is used to indicate to the server which types of objects (media, etc.) the client can proce…
What are Quality values (quality values / priority) in HTTP?
Quality values (quality values / priority) are numerical values used in HTTP headers to determine the relative quality or priorit…
What is Routing?
Routing (routing) is a key stage in the process of directing network traffic to its destination. It plays an important role in bo…
What is the purpose of the HTTP TRACE method?
The HTTP method TRACE is intended for diagnosing the path that a request has taken to the server. When a client application sends…
What is the difference between the PUT and PATCH HTTP methods?
The main difference between the PUT and PATCH methods lies in the amount of data sent to the server and their behavior. The PUT m…
