javascript ? ternary operator in object code example

Example 1: javascript ternary operator

//ternary operator example:
var isOpen = true; //try changing isOpen to false
var welcomeMessage  = isOpen ? "We are open, come on in." : "Sorry, we are closed.";

Example 2: ternary operator javascript

// Write your function here:

const lifePhase = (age) => {
  return age < 0 || age > 140 ? 'This is not a valid age':
   age < 3  ? 'baby':
   age < 13 ? 'child':
   age < 20 ? 'teen':
   age < 65 ? 'adult':'senior citizen';
}




 console.log(lifePhase(5))