Here’s an example of nesting ternary operations in JavaScript:

const number = 10;

const result = number > 5 ? (number > 10 ? "Greater than 10" : "Greater than 5") : "Less than or equal to 5";

console.log(result);

In this example, we have a nested ternary operation. If the number variable is greater than 5, it moves on to the inner ternary operation (number > 10 ? "Greater than 10" : "Greater than 5"). If the number is greater than 10, it returns the string "Greater than 10", otherwise it returns the string "Greater than 5". If the number is not greater than 5, the outer ternary operation returns the string "Less than or equal to 5".

Nesting ternary operations can be useful for creating more complex conditional logic in a concise manner. However, it’s important to use them judiciously to maintain readability and avoid overly complex code.