Optimizing the code using the sort function as an example
A number of algorithms can be distinguished that are basic and underlie almost every line of programs written in high-level languages. It is good to have at hand the classic multivolume work of Donald Knuth “The Art of Computer Programming”, where many basic algorithms are…
DevOps Time for Java Developers
The topic for discussion is building Java applications in CI. Let’s take a look at the Maven repository on Docker Hub. The latest version (3.8.1) appears everywhere, but images based on Alpine are only ibmjava-8, there are no 11 or current releases. The 11-slim image…
Type Safety in JavaScript: Flow and TypeScript
Disclaimer: I do not claim to be a discovery in this article, but only want to help avoid mistakes when creating applications. We all love the “magic” that a tool like SignalR gives us and are happy to implement it in our projects. Of course,…
How hackers spoof DNS requests by poisoning the cache
Domain Name Server (DNS) spoofing is a cyberattack in which an attacker directs the victim’s traffic to a malicious site (instead of a legitimate IP address). Attackers use DNS cache poisoning to intercept Internet traffic and steal credentials or confidential information. DNS cache poisoning and…
Fiddler = convenient sniffer + proxy server
In this article, we will understand how and why you can change HTTP packets when sending to the server and when receiving responses from the server. Why do this? Example 1. Traffic analysis.Your network users are using your proxy server. You can see which sites…
How Serverless Computing (Function-as-a-Service) works and where it is used
Serverless computing and the Function-as-a-Service solutions that work on their basis help developers develop products with a focus on business features. We experimented with these technologies and came to the conclusion that the existing solutions are damp for combat use. Let’s go in order. The…
Writing unit tests in TypeScript (by the example of cats)
How do I write unit tests in a TypeScript project? In this article, we will try to answer this question and also show you how to create a unit testing environment for projects using TypeScript. What are unit tests? Unit tests – Tests applied across…
A cloud for everyone. Building a CI/CD pipeline for serverless functions
In a public cloud built on Huawei technologies, there is an extremely useful serverless computing service – Function Graph. It allows you to quickly jot down code to solve a specific business problem and run it without wasting time deploying and configuring individual servers. But…