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Coldwast wrote
Jun 17, 2026 in Programming, Web, Concepts — A webhook is an automated HTTP request a service sends you when an event happens — the reverse of an API call you make. How webhooks differ from polling an API, how to receive one safely, and real examples (Stripe, GitHub, Slack).
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Jun 15, 2026 in Programming, Concepts — A variable is a named container that holds a value your program can read and change. How you declare and assign one, types and scope, constants vs variables, and why they are the building blocks of every program.
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Jun 14, 2026 in Programming, Concepts — An algorithm is a finite, step-by-step procedure that turns input into output. Its key properties, everyday and code examples, why efficiency (Big-O) matters, and how it differs from a program.
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Jun 14, 2026 in Programming, Web, Concepts — An API is a contract that lets one piece of software talk to another. The main kinds (web/REST, library, OS), how a web request and response work, and why APIs are everywhere in modern software.
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Jun 14, 2026 in Haskell, Concepts — Haskell is a purely functional, statically typed, lazy language with powerful type inference. The ideas that define it — purity, immutability, laziness, strong types — what it is used for, and how to start.
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Jun 14, 2026 in Haskell, Concepts — Haskell computes a value only when it is actually needed. What lazy evaluation is, thunks, infinite data structures, the space-leak trap, and forcing strictness with seq and BangPatterns.
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Jun 14, 2026 in Haskell, Concepts — A monad sequences computations carrying context — Maybe, Either, IO, lists. What it really is, bind (>>=) and return, and do-notation, plainly.
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