JavaScript control structures are essential for managing the flow of program execution. They include conditionals, loops, and jump statements that allow developers to make decisions and repeat actions. Let's explore the key structures:

1. Conditional Statements 🟢

  • if...else: Executes code based on a condition. 
    if (condition) { /* code */ } else { /* alternative code */ }
  • switch: Compares a value against multiple cases. 
    switch (expression) { case value1: ...; break; }
    if_statement

2. Loop Structures 🔁

  • for: Repeats a block of code for a specified number of times. 
    for (init; condition; increment) { /* loop body */ }
  • while: Continues looping while a condition is true. 
    while (condition) { /* loop body */ }
    for_loop

3. Jump Statements ⏎

  • break: Exits a loop or switch statement.
  • continue: Skips the current iteration of a loop.
  • return: Exits a function and optionally returns a value.
    jump_statements

4. Practical Examples 📚

  • Use if...else for simple decision making: 
    let age = 18;
if (age >= 18) { console.log("Adult"); } else { console.log("Minor"); }
  • Combine switch with case for multiple conditions: 
    let day = "Monday";
switch (day) { case "Monday": console.log("Start of week"); break; }

For deeper insights, check our guide on JavaScript Fundamentals. 🚀