--- title: nor tags: math,logic,beginner unlisted: true firstSeen: 2021-03-29T21:20:41+03:00 lastUpdated: 2021-04-02T16:47:15+03:00 --- Checks if none of the arguments are `true`. - Use the logical not (`!`) operator to return the inverse of the logical or (`||`) of the two given values. ```js const nor = (a, b) => !(a||b); ``` ```js nor(true, true); // false nor(true, false); // false nor(false, false); // true ```