--- title: isSymbol tags: type,beginner firstSeen: 2017-12-17T17:55:51+02:00 lastUpdated: 2020-09-15T16:28:04+03:00 --- Checks if the given argument is a symbol. - Use `typeof` to check if a value is classified as a symbol primitive. ```js const isSymbol = val => typeof val === 'symbol'; ``` ```js isSymbol(Symbol('x')); // true ```