typeOf.pddivine

A library that intuitively identifies a variable's type and return the cooresponding type constructor or special value.

Features

Returns intuitive type of a variable. For example, the native 'typeof' function will return 'object' when detecting the type of an array variable. This typeOf library would return the native Array object constructor in this case.

TLDR;

const typeOf = require('typeof.pddivine');

const tests = [
  '',
  1,
  {},
  [],
  true,
  new Date(),
  function x () {},
  null,
  undefined
];

// Using 'asString: true' option.
tests.forEach(v => console.log(typeOf(v, { asString: true })));

/** PRINTS
* 'string'
* 'number'
* 'object'
* 'array'
* 'boolean'
* 'date'
* 'function'
* 'null'
* 'undefined'
*/

// Normal, without config option.
tests.forEach(v => console.log(typeOf(v)));

/** PRINTS
* String constructor
* Number constructor
* Object constructor
* Array constructor
* Boolean constructor
* Date constructor
* Function constructor
* null
* undefined
*/

Variance From Native 'typeof'

The native 'typeof' function has these two correct, but unintuitive, responses.

Input Value Type	Return Value
Array	String Value 'object'
Null	String Value 'object'

The native 'typeof' function also returns a string response for the type. The typeOf library will instead return the cooresponding constructor or special value to the identified input type.

TypeOf Library Evaluation of Type

Input Value Type	Return Value
Array	Array Constructor
Boolean	Boolean Constructor
Date	Date Constructor
Function	Function Constructor
Null	Special Value Null
Number	Number Constructor
Object	Object Constructor
String	String Constructor
Symbol	Symbol Constructor
Undefined	Special Value Undefined

Evaluating a Special Value Returns Itself

Special Value	Return Value
Null	Itself
Undefined	Itself