Stability: 0 - Deprecated: Use typeof value === 'symbol' instead.

    • object {any}
    • Returns: {boolean}

    Returns true if the given object is a Symbol. Otherwise, returns false.

    1. const util = require('util');
    3. util.isSymbol(5);
    4. // Returns: false
    5. util.isSymbol('foo');
    6. // Returns: false
    7. util.isSymbol(Symbol('foo'));
    8. // Returns: true