# falsy ```js // usages chance.falsy() chance.falsy({ pool: [ NaN, undefined ] }) ``` Return a random falsy value (`false`, `null`, `undefined`, `0`, `NaN`, `''`). ```js chance.falsy(); => false ``` The default pool can be changed to better meet the needs: ```js chance.falsy({ pool: [ NaN, undefined ] }); => NaN ```