JavaScript Tutorial
JavaScript if...else Statement (With Example)
Table of Contents
- Introduction
- What is if...else in JavaScript?
- Basic if Statement in JavaScript
- JavaScript if...else Statement
- JavaScript if...else if...else Statement
- Using Logical Operators in JavaScript if Statements
- JavaScript Nested if Statements
- Ternary Operator: A Shortcut for JS if...else
- Best Practices for JS if...else
- Common Errors to Avoid
FAQs about JS if...else
The if...else statement is used to make decisions in a program. It runs different blocks of code based on whether a condition is true or false.
The if statement checks a condition. If the condition is true, it runs the code inside its block. Otherwise, it skips to the next part of the program.
Yes, you can combine conditions using logical operators (&&, ||, !) to check multiple criteria.
The if block runs when the condition is true.
The else block runs when the condition is false.
Yes, nested if statements allow you to handle complex decision-making by placing an if inside another.
Yes, the else block is optional. You can use just an if block if you don’t need to handle the false case.
You can simplify nested if statements by using functions or logical operators to combine conditions.
If there’s no else block, the program simply skips to the next statement if the if condition is false.
Use if...else statements when you need to make decisions in your program and handle different outcomes based on conditions.
