pretty-easy-data-types
Utility library for checking the data type of a supplied parameter
Utility library for checking the data type of a supplied parameter
Check types easy
scheme data type checker
A dynamic type checker for JavaScript
declarative check type of function arguments and development profiler for your functions
provides helpers to check if argument type is object, array, function
封装过的typeof,比原生精明不少
The javascript library to get or check the type of a given variable.