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 (hour < 18) {
greeting = "Good day";
}
else {
greeting = "Good evening";
}
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 < 10) {
greeting = "Good morning";
}
else if (time < 20) {
greeting = "Good day";
}
else {
greeting = "Good evening";
}
Example
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;
