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State machines are perhaps one of those concepts you heard about in college but never put into practice. Maybe you use them regularly. Regardless, you certainly run into them regularly, from regular expressions to traffic lights.
If you're building an application that needs to scale—and we all tell ourselves that we are—then at some point you have to figure out if it does or not. This is where load testing comes in: if you want to see whether or not your application can handle scale, just generate scale and see if it can handle it! It sounds straightforward enough.
We’ve all complained about technical debt and legacy code, but it’s not all bad.
Exploring a new repository can certainly be a daunting task. Many angles come at play - familiarity with the languages, understanding of the tools or frameworks used, how components integrate with each other, what paradigm is used by the developers, etc. The points mentioned in this section will present you with approaches to make this journey smooth.
The text editor is antirez’s kilo, with some changes. It’s about 1000 lines of C in a single file with no dependencies, and it implements all the basic features you expect in a minimal editor, as well as syntax highlighting and a search feature.