All posts#programming5 posts with this tag28 March 2026I Wanted Course Authors to Write Tests. I Built a Language.How a simple request to let course authors write assertions turned into building a domain-specific language — and what that taught me about every API I use.28 March 2026Using My Own DSL Taught Me More Than Building It DidBuilding a DSL is the tractable problem. Using one on something real — a calculator, five clicks, a failing test — showed me the part I'd missed.26 March 2026Why Async Code Feels UnpredictableJavaScript runs code in a single thread — sync, then microtasks, then one macrotask, repeat. Once you see the queues, async stops feeling random.22 March 2026Why State Management Becomes HardState gets hard not when you store it, but when several places change it. One store, one dispatch, one reducer — and every update has a reason you can trace.19 March 2026Why If Statements Don't ScaleA chain of conditions feels fine — until it doesn't. The problem was never the logic; it was the structure.2026 © Jordan O’Hara
