123456789101112131415161718192021222324252627282930 |
- var baseGetTag = require('./_baseGetTag'),
- isObjectLike = require('./isObjectLike');
-
- /** `Object#toString` result references. */
- var symbolTag = '[object Symbol]';
-
- /**
- * Checks if `value` is classified as a `Symbol` primitive or object.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
- * @example
- *
- * _.isSymbol(Symbol.iterator);
- * // => true
- *
- * _.isSymbol('abc');
- * // => false
- */
- function isSymbol(value) {
- return typeof value == 'symbol' ||
- (isObjectLike(value) && baseGetTag(value) == symbolTag);
- }
-
- module.exports = isSymbol;
|