What is the ternary operator in JavaScript?

The Conditional (ternary) is a shorthand way of writing simple if-else statements in JavaScript. It's denoted by the ? : syntax and takes the following form:

condition ? expressionIfTrue : expressionIfFalse;

Here's how it works:

1. The condition is an expression that evaluates to a boolean value (true or false).

2. If the condition is true, the expressionIfTrue will be evaluated and returned as the result of the whole expression.

3. If the condition is false, the expressionIfFalse will be evaluated and returned as the result.

Here's an example of using the conditional operator:

const age = 20;

// Using the conditional operator to check if age is greater than or equal to 18
const message = age >= 18 ? "You are an adult" : "You are a minor";

console.log(message); // Output: "You are an adult"

In this example, if age is greater than or equal to 18, the message "You are an adult" will be assigned to the message variable. Otherwise, the message "You are a minor" will be assigned.

The conditional operator is a concise and handy way to handle simple conditional expressions in JavaScript. However, for more complex logic or multiple conditions, using regular if-else statements might be more readable and maintainable.