JavaScript validation data type

Recently through the study of Underscore.js source code, the JavaScript data type validation has a new understanding, it can be judged so simple and so comprehensive.

We have customized Isstring,isnumber, isDate, IsError, Isregexp, Isboolean, IsNull, isundefined, IsObject and other methods. Now define your own JavaScript data type validation functions and test sets to show:

<! DOCTYPE html>
The location of the code is:
Http://runjs.cn/code/ucwpitro

 
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JavaScript validation data type