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The else Statement

Use the else statement to specify a block of code to be executed if a condition is false.

if (condition) { // block of code to be executed if the condition is true } else { // block of code to be executed if the condition is false }

Example

If the hour is less than 18, create a "Good day" greeting, otherwise "Good evening":

if (hour < 18) { greeting = "Good day"; } else { greeting = "Good evening"; } Try it Yourself »

The else if Statement

Use the else if statement to specify a new condition if the first is false.

Syntax

if (condition1) { // block of code to be executed if condition1 is true } else if (condition2) { // block of code to be executed if the condition1 is false and condition2 is true } else { // block of code to be executed if the condition1 is false and condition2 is false }

Example

If time is less than 10:00, create a "Good morning" greeting, if not, but time is less than 20:00, create a "Good day" greeting, otherwise a "Good evening":

if (time < 10) { greeting = "Good morning"; } else if (time < 20) { greeting = "Good day"; } else { greeting = "Good evening"; } Try it Yourself »

Example

This example will write a link to either W3Schools or to the World Wildlife Foundation (WWF). By using a random number, there is a 50% chance for each of the links.

let text; if (Math.random() < 0.5) { text = "<a href='https://w3schools.com'>Visit W3Schools</a>"; } else { text = "<a href='https://wwf.org'>Visit WWF</a>"; } document.getElementById("demo").innerHTML = text; Try it Yourself » ❮ Previous Next ❯ ★ +1 Sign in to track progress

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