Mastering Control Flow in JavaScript: If, Else, Switch & Ternary Made Simple

Introduction: Every Decision Has a Path Imagine you’re walking to your college. If it’s raining → you take an umbrella for walk. Else → you walk normally. If it’s exam tomorrow → time to study before the exam day. Else → you scroll reels in Instagram. So we can see, every action depends on a condition . Programming works exactly the same way. A program without decision-making is just a sequence of instructions. But real-world applications must respond, adapt, and branch based on data. That branching mechanism is called control flow . What is Control Flow in Programming? Control flow determines the order in which statements execute, including conditional branching, loops, and function execution. By default, JavaScript executes code top to bottom . But using control flow statements, we can: Skip parts of code Execute specific blocks based on conditions Choose between multiple paths In simple terms: Control flow is how your program decides what to run and when. if - else if - else The if