JavaScript Else Statement

1. Syntax of Else

The syntax for the `else` statement is as follows:

if (condition) {
    // Code to execute if condition is true
} else {
    // Code to execute if condition is false
}

2. Example: Using Else

Here's an example that demonstrates how to use the `else` statement:

let age = 18;

if (age >= 18) {
    console.log('You are an adult.');
} else {
    console.log('You are a minor.');
}

In this example, the program checks if the value of `age` is 18 or older. If true, it logs that the user is an adult; otherwise, it logs that the user is a minor.

3. Combining Else with If

The `else` statement is typically used in combination with an `if` statement:

let temperature = 15;

if (temperature > 20) {
    console.log('It is warm outside.');
} else {
    console.log('It is cold outside.');
}

This checks the temperature and provides feedback based on whether it is above or below a specified threshold.

4. Best Practices

• Ensure your conditions are clear and easy to understand.
• Keep your `else` statements concise to improve readability.
• Avoid using too many nested conditions; consider refactoring for clarity.

5. Conclusion

The `else` statement is a fundamental part of conditional logic in JavaScript. It allows developers to specify actions that should occur when conditions are not met, enabling more dynamic and responsive code.