Simply Is

An expressive type testing utility library.

GITHUB: https://github.com/anonmily/simply-is

NPM: https://www.npmjs.com/package/simply-is

Installation - Node

To install as a Node package, simply install via npm:

npm install simply-is

Then, you can require and start using the package as you wish:

var is = require('simply-is');
console.log( is('300').a.number );

Installation - Bower/Frontend

The package can be installed via Bower:

bower install simply-is

SimplyIs can also be downloaded directly.

Note, for frontend use, the file that should be included is simplyis.js:

<script src='/bower_components/simplyis/simplyis.js'></script>

The script is available as a global module as well as an AMD module. As a global module, it can be accessed through window.simplyIs.

var is = window.simplyIs;
console.log( is('300').a.number );

---

Usage

Example

var is = require('simply-is');

is.object({}); 			//true
is.a.string('hello')	//chaining
is.not.an.array({})		//negation

//alternative syntax
is(3).even
is('hello').a.string
is('[{"key":"somevalue"}]').json

Basics

is.argument 	( (function(){ return arguments; })(1,2,3) )
is.array 		([1,2,3])
is.boolean 		(1==1)
is.date 		(new Date())
is.defined 		(1)
is.function 	(function(){return 'hi'})
is.json 		('[{"key":"somevalue"}]')
is.null 		(Null)
is.number 		(1)
is.object 		({})
is.regexp 		(/abc/)
is.string 		('hello world')
is.undefined 	(undefined)

Utility

is.empty		({}) 	//true for {}, [], 0, "", null, undefined, false
is.equal 		( {a: 1, b: "hello"}, {b:"hello", a:1} )
is.sameType 	({	a: 1, b: "hello" }, { a: "number", b: "string" })

is.inArray 		('a',['a','b','c'])

is.inObject 	('apple',{fruit: 'apple'})
is.inObject 	('fruit',{fruit: 'apple'})

is.instanceOf 	( doberman, DogConstructor )

Contains/inside

is.inside("fred", {"user": "fred", "age":40 })
is.inside("age", {"user": "fred", "age":40 })
is.inside("apple",["peach","apple","grapes"])
is.inside("cat","I love cats")

is("fred").inside({"user": "fred", "age":40 })
is("age").inside({"user": "fred", "age":40 })
is("apple").inside(["peach","apple","grapes"])
is("cat").inside("I love cats")

Numbers

is.number		(1)
is.nan			(NaN)
is.infinite		(Infinity)
is.even			(2)
is.odd			(3)
is.integer 		(10)
is.decimal 		(10.5)
is.numberValid 	(Infinity) //returns false for Infinity, -Infinity, NaN, and non-numbers
is.numberInvalid (NaN) //true. opposite of is.numberValid

Booleans

is.boolean  	(true)
is.true			(1==1)
is.false		(1==2)

Patterns

is.email 		('[email protected]')
is.phone 		('626-123-4567')
is.alpha 		('abcdefghij')
is.numeric 		('123455')
is.alphanumeric ('test12345')

---

TODO

1. is.csv
2. is.yaml
3. is.xml
4. is.deepEqual

---

Changelog

Version	Notes
2.4.7	Used getter functions for isfunc to improve performance. The result of the comparison will only run when the result is needed/requested rather than stored in a static property.
2.5.5	Added in is.equal and is.sameType
2.5.6	Added is.email, is.phone, is.alpha, is.numeric, is.alphanumeric
2.5.7	Added is.numberValid and is.numberInvalid