- Python Advanced – Interview Questions
The questions that actually get asked, with answers that show understanding rather than recall. Mutable defaults, is versus ==, the GIL and what it does not mean, shallow copies, decorators, generators, and how to answer when you do not know.
- Python – Code Snippets
The short answers you keep looking up — read a file into a list, sort a dict by value, flatten a nested list, count occurrences, chunk a list, merge dicts, retry a call, time a block. Copy, paste, move on.
- Frontend Dev – Performance and Accessibility
Two subjects in one post because they are the same subject: whether the person on the other end can actually use this. Bundle size and code splitting, the render cost you can measure, images, Core Web Vitals — then semantics, labels, focus order, keyboard operation and contrast, and the four checks that catch most of it.
- Java Best Practices
These are the habits that separate code a team can maintain from code they quietly rewrite. None of them is clever. All of them compound. Name things properly You write a name once and read it for years. The conventions are fixed and universal: PascalCase for types, camelCase for methods and…
- Spring Study Guide – Testing
When a test needs Spring and when it does not. Plain unit tests with Mockito, the cached test context and what silently evicts it, slice tests versus @SpringBootTest, @MockitoBean, why a @Transactional test rolls back by default, testing controllers with MockMvc and a whole API over a real port — every example from a suite that runs green.