On the third day of the "12 Days of Retool" series, the focus is on exploring the strict equality operator in JavaScript, a topic that often causes debate among developers due to its handling of type coercion. Unlike the regular equality operator, which attempts to convert the compared values to the same type, the strict equality operator compares values without type conversion, leading to different outcomes in certain scenarios. To illustrate this, a simple Retool application is introduced, allowing users to test the behavior of both comparison operators by inputting two values that can be parsed as JSON, with JavaScript transformers used to render the results dynamically within the application's UI. These transformers, akin to computed properties in frameworks like Vue, enable the creation of complex values based on the application's current state, enhancing the user interface without embedding intricate logic directly. This exploration aims to clarify the concept of "truthiness" and "falsiness" in JavaScript, providing developers with a hands-on tool to better understand these operators while also hinting at future posts in the series that continue to delve into various programming topics.