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WASM cheat sheet & developer notes

WASM cheat sheet and 2 curated developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · WASM

What WebAssembly Is & How It Fits with JavaScript

What WebAssembly Is & How It Fits with JavaScript. A Binary Compilation Target, Not a New Language. WebAssembly (WASM) is a low-level, portable binary instruction format designed to run at near-native speed in browsers a…

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02 · WASM

Linear Memory, the JS Boundary & When to Use WASM

Linear Memory, the JS Boundary & When to Use WASM. Linear Memory: A Flat Byte Array. WASM modules operate on linear memory — a single, contiguous, resizable block of bytes, manually managed like C/C++ memory. WASM functi…

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TypeScriptgeneral

Interview Questions

TypeScript Interview Questions. Comprehensive TypeScript interview questions covering type system, generics, utility types, and best practices:. Fundamentals. 1. What is TypeScript?. TypeScript is a…

Mar 28, 2026

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TypeScriptgeneral

Advanced Types (Generics & Utility Types)

TypeScript Advanced Types. Generics. // Generic function function identity<T>(arg: T): T { return arg; } const num = identity<number>(42); // Explicit const str = identity('hello'); // Inferred //…

Mar 3, 2026

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