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Get Class Javascript
/**
* Returns internal [[Class]] property of an object
*
* Ecma-262, 15.2.4.2
* Object.prototype.toString( )
*
* When the toString method is called, the following steps are taken:
* 1. Get the [[Class]] property of this object.
* 2. Compute a string value by concatenating the three strings "[object ", Result (1), and "]".
* 3. Return Result (2).
*
* __getClass(5); // => "Number"
* __getClass({}); // => "Object"
* __getClass(/foo/); // => "RegExp"
* __getClass(''); // => "String"
* __getClass(true); // => "Boolean"
* __getClass([]); // => "Array"
* __getClass(undefined); // => "Window"
* __getClass(Element); // => "Constructor"
*
*/
const getClass = object => Object.prototype
.toString
.call(object)
.match(/^\[object\s(.*)\]$/)[1];
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