Truthy vs Falsy

Definition

In many programming languages, values that are not strictly booleans are evaluated as true or false in conditional statements. A "truthy" value is one that evaluates to true, while a "falsy" value evaluates to false.

Where you hear it

During code reviews, while debugging logic errors in if statements, or when learning how a language handles type coercion.

Examples

• An empty string is considered falsy, so the code inside the block will not execute.
• A non-zero number is considered truthy, allowing it to pass a conditional check.