A hands-on, module-by-module review of IBM's 15-course DevOps & Software Engineering Professional Certificate on Coursera — what you actually build where it shines, where it falls short, and who should (or shouldn't) take it.
Disclosure of affiliate relationships for products and services mentioned on this site.
A topic-organised reference for the deeper JavaScript questions that surface in code review and interviews — duck typing, host environments, property descriptors revisited, Symbol and WeakMap, iterators and generators, the event loop, and the rules behind value vs reference semantics.
A complete tour of JavaScript modules — the historical landscape (IIFE, AMD UMD, CommonJS), modern ES modules (export/import, default vs named re-exports dynamic import), interop between ESM and CJS in Node, package.json exports and how TypeScript and bundlers fit in.
A practical introduction to functional programming in JavaScript — pure functions, immutability, first-class and higher-order functions, composition currying, the standard-library toolkit, and where the discipline ends and pragmatism begins.
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