JavaScript ternary operator

The ternary operator, also known as the conditional operator, is a shorthand way to write simple if-else statements in JavaScript. It allows you to write a compact expression that evaluates a condition and returns a value based on the result of that condition.

The syntax of the ternary operator is as follows:

condition ? valueIfTrue : valueIfFalse;

Here’s how it works:

1. The condition is an expression that evaluates to either true or false.
2. If the condition is true, the expression returns valueIfTrue.
3. If the condition is false, the expression returns valueIfFalse.

Here’s an example to illustrate the usage of the ternary operator:

var age = 25;
var message = age >= 18 ? "You are an adult" : "You are a minor";
console.log(message);

In this example, if the age is greater than or equal to 18, the condition age >= 18 evaluates to true, and the value "You are an adult" is assigned to the message variable. Otherwise, if the condition is false, the value "You are a minor" is assigned to the message variable.

The ternary operator can be useful when you need to assign a value based on a simple condition in a concise and readable manner. However, for more complex conditions or multiple branches, it is generally better to use if-else statements for better readability and maintainability.