Explore Capsules

Leaving a paycheck for a side project is a one-way door most people time badly. These approaches disagree on what must be true first: a financial safety net, a validated market, a built-out network, or ruthless task discipline while still employed. Test your own readiness against each before you hand in notice.

Regular expressions are powerful tools for matching and validating text, but they require careful construction to avoid errors and performance issues. This collection presents practical patterns for common tasks like email and IP address validation, explains how to use anchors and assertions to control matches, and highlights strategies to prevent security risks such as catastrophic backtracking. It also covers Unicode-aware techniques and testing methods to ensure reliable and efficient regex usage.