https://asaed.me Articles on software engineering and things I learn along the way. en https://asaed.me/writing/why-maps-lie Geographic data is messy by nature. Here's what I've learned building GIS software and why your map is probably wrong in at least three ways. Sun, 24 May 2026 00:00:00 GMT https://asaed.me/writing/why-maps-lie https://asaed.me/writing/sliding-window-technique-in-javascript An efficient approach to solving subarray and substring problems by maintaining a window that slides through the data structure. Sat, 21 May 2022 00:00:00 GMT https://asaed.me/writing/sliding-window-technique-in-javascript https://asaed.me/writing/the-observer-pattern A behavioral design pattern that defines a one-to-many dependency between objects — when one changes state, all its dependents are notified automatically. Thu, 19 May 2022 00:00:00 GMT https://asaed.me/writing/the-observer-pattern https://asaed.me/writing/avoid-unleashing-zalgo-in-nodejs Why mixing synchronous and asynchronous callbacks in Node.js is dangerous and how to keep your APIs predictably async. Tue, 03 May 2022 00:00:00 GMT https://asaed.me/writing/avoid-unleashing-zalgo-in-nodejs