Lesson 4.5: Conditional Statements & Loops
Conditional statements and loops allow JavaScript to make decisions and repeat tasks, making your code dynamic and interactive.
1. Conditional Statements
Conditional statements execute different blocks of code based on certain conditions.
a) if Statement
b) if…else Statement
c) if…else if…else Statement
d) switch Statement
2. Loops
Loops are used to repeat code multiple times until a condition is met.
a) for Loop
b) while Loop
c) do…while Loop
-
Executes at least once, then checks the condition.
d) for…of Loop (for arrays)
e) for…in Loop (for objects)
✅ Summary:
-
Conditional Statements: Execute code based on conditions (
if,else,else if,switch). -
Loops: Repeat code multiple times (
for,while,do…while,for…of,for…in). -
Conditional statements + loops = dynamic and efficient JavaScript programs.
