The compiler infers, but does not take instructions. There is no syntax for explicit type declarations yet, and the new type ...

} • Pure Functions These return the same result for the same inputs and have no side effects. function pureAdd (a, b) { return a + b; } Other important types include: - Callback Functions - ...

SQL shows up in almost every backend and full-stack interview. Not just basic SELECT queries. Interviewers want to know if you understand what's happening underneath. Here's what actually gets tested: ...