The code will output 'false'. The logical OR (||) operator returns the first truthy operand it encounters, or the last operand if all are falsy. Since 0 is falsy, the evaluation continues to the next operand. The string 'false', despite its content meaning falsehood, is a non-empty string and therefore truthy in JavaScript. So the expression 0 || 'false' evaluates to 'false' (the string). This is different from what many might expect if they think the || operator always returns a boolean, but in JavaScript, it returns the actual operand value, not its boolean equivalent.