Learn the key differences between JavaScript function declarations and expressions, including hoisting behavior, pros/cons, and practical use cases. Master when to use each approach.
Learn how to implement default parameter values in JavaScript functions using ES6 syntax. This complete guide covers behavior with different input types, advanced techniques, and browser compatibility.
Learn how the exclamation mark converts function declarations to expressions in JavaScript, enabling immediate invocation. Complete guide to IIFE patterns, use cases, and benefits.