Bugl — Daily coding puzzles and drills

The JavaScript if Statement

Use the JavaScript if statement to execute a block of code when a condition is true. Syntax if ( condition

) {

// block of code to be executed if the condition is true

}
Note that if is in lowercase letters. Uppercase letters (If or IF) will generate a JavaScript error.

Example

Make a "Good day" greeting if the hour is less than 18:00:

if (hour < 18) {
greeting = "Good day";
}

The result of greeting will be:

Examples let age = 18;
let text = "You can Not drive";
if (age >= 18) {
text = "You can drive";
}
let age = 16;
let text = "You can Not drive";
if (age >= 18) {
text = "You can drive";
}

Nested if

You can use an if statement inside another if statement:

Example

let age = 16;
let country = "USA";
let text = "You can Not drive!";
if (country == "USA") {
if (age >= 16) {
text = "You can drive!";
}
}

Nested if statements can make your code more complex. A better solution is to use the logical AND operator:

Example

let age = 16;
let country = "USA";
let text = "You can Not drive!";
if (country == "USA" && age >= 16) {
text = "You can drive!";
}