The Essence Scanner

Mission Briefing

The vault will only open if a true element is placed on the pedestal. Some items look real but are merely illusions (falsy). Build a scanner to detect true essence.

The Concept: Truthy vs Falsy

In JS, every value has an inherent boolean state. A value is falsy if it translates to false when evaluated. The falsy values are: false, 0, -0, 0n, "", null, undefined, and NaN. Everything else is truthy.

The Objective

Your function receives a parameter val.

1. Evaluate whether val is truthy or falsy.
2. If it is truthy, return the exact string "Exists".
3. If it is falsy, return the exact string "Empty".