tea-type

Better typeof detection and assertions for node.js and the browser.

Installation

Node.js

tea-type is available on npm.

$ npm install tea-type

Component

tea-type is available as a component.

$ component install qualiancy/tea-type

Usage

Simple usage returns a more accurate typeof string. Examples augmented with chai assertions.

var type = requre('tea-type');
 
type([ 1,2 ]).should.equal('array');
type('hello world').should.equal('string');
type(/abc/g).should.equal('regexp');
type(new Date).should.equal('data');
// etc...

Also, simple testing of object types.

type.is([], 'array').should.be.true;
type.is('1', 'number').should.be.false;
// etc

But you can also add your own custom type tests using .test(). The test can be a regular expression or function.

// regular expression
type.test('int', /^[0-9]+$/);
type.is('1', 'int').should.be.true;
type.is('a', 'int').should.be.false;
 
 
// function
type.test('bln', function (obj) {
  if ('boolean' === type(obj)) return true;
  var blns = [ 'yes', 'no', 'true', 'false', 1, 0 ];
  if ('string' === type(obj)) obj = obj.toLowerCase();
  return !! ~blns.indexOf(obj);
});
 
type.is(true, 'bln').should.be.true;
type.is(false, 'bln').should.be.true;
type.is('Yes', 'bln').should.be.true;
type.is('no', 'bln').should.be.true;
type.is('true', 'bln').should.be.true;
type.is('False', 'bln').should.be.true;
type.is(1, 'bln').should.be.true;
type.is(0, 'bln').should.be.true;
type.is(2, 'bln').should.be.false;
type.is('nope', 'bln').should.be.false;

License

(The MIT License)

Copyright (c) 2012 Jake Luer jake@qualiancy.com (http://qualiancy.com)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.