Meteor Is

Is for Meteor is a small library that provides some handy methods to quickly check or validate the contents of a variable. Especially useful if you need to know if an object is an actual array or an object.

Install it

Install the library via the meteor command:

meteor add flyandi:is

How to use it

Pretty straightforward. The library exposes Is that contains all the evaluating methods, e.g.:

var AnArray = ['red', 'blue', green];

var AnObject = {color: 'red', background: 'green'};

if(Is.array(AnArray)) console.log("This is an array");

if(Is.object(AnObject)) console.log("This is an object");

Methods

The Is library implements the following methods currently:

Method	Description
iterable	Checks if an object can be iterated, e.g. forEach
fn	Returns true if the argument is an function
object	Returns true if the argument is an object
array	Returns true if the argument is an array
string	Returns true if the argument is an string
number	Returns true if the argument is an number
boolean	Returns true if the argument is an "true" boolean, e.g. TRUE or FALSE
defined	Returns true if the argument is defined, e.g. not undefined
element	Returns true if the argument is an HTMLElement
empty	Returns true if the argument is really empty
same	Returns true if two arguments are equal, e.g. Is.same('1', '1');

Additionally the library also provides some basic validation expressions:

Method	Description
url	Returns true if the argument contains a URL
email	Returns true if the argument contains an E-Mail
creditcard	Returns true if the argument contains an Credit Card Number
alphanumeric	Returns true if the argument contains an Alpha Numeric string
time	Returns true if the argument contains an time
datestring	Returns true if the argument contains an date string
zip	Returns true if the argument contains an ZIP Code
phone	Returns true if the argument contains a US Phone Number
ssn	Returns true if the argument contains a Social Security Number
affirmative	Returns true if the argument contains True, Yes or Ok
hexadecimal	Returns true if the argument contains a hexadecimal string
hexcolor	Returns true if the argument contains an HTML color

Future

I have some ideas to add more evaluation methods to this as needed by myself. Feel free to contribute.