JavaScript
JavaScript If...ElseJavaScript If...Else
JavaScript if statements run code only when conditions are true.
Read Time
5 min readDifficulty
BeginnerLast Updated
Jun 15, 2026Version
v1.0.0Introduction
JavaScript uses conditional statements to make decisions. Developers tell the computer to check a condition, like if a user is logged in. If true, the code shows the dashboard; if false, it shows the login screen.
Example
Example
Key Points
- The `if` block runs when the condition is true.
- The `else` block runs when the condition is false.
- The `else if` block tests a new condition.
- Conditions go inside parentheses.