--- /dev/null
+var coreJsData = require('./_coreJsData'),
+ isFunction = require('./isFunction'),
+ stubFalse = require('./stubFalse');
+
+/**
+ * Checks if `func` is capable of being masked.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
+ */
+var isMaskable = coreJsData ? isFunction : stubFalse;
+
+module.exports = isMaskable;