To help you get started, we've collected the most common ways that typeable is being used within popular public projects.

xpepermint / validatablejs / src / validators / string-hex-color.ts View on Github

export function stringHexColor (value: any): boolean {
  if (!isString(value)) return false;

  return /^#?([0-9A-F]{3}|[0-9A-F]{6})$/i.test(value);
}

View more ways to use typeable

typeable.js

> A library for checking and casting types.

This is a light weight open source package for use on server or in browser (using module bundler). The source code is available on GitHub where you can also find our issue tracker.

Related Projects

• RawModel.js: Strongly-typed JavaScript object with support for validation and error handling.
• Validatable.js: A library for synchronous and asynchronous validation.
• Handleable.js: A library for synchronous and asynchronous error handling.

Install

Run the command below to install the package.

$ npm install --save typeable

Examples

import {cast} from 'typeable';

// general use
cast(100, 'String'); // => '100'
cast('true', 'Boolean'); // => true
cast('10.13', 'Integer'); // => 10
cast('10.13', 'Float'); // => 10.13
cast('10.13', 'Number'); // => 10.13
cast(1229380112300, 'Date'); // => Date(2008-12-15T22:28:32.300Z)
cast('John', ['Any']); // => ['John']
cast(100, ['String']); // => ['100']
cast([100], ['String']); // => ['100']
cast('true', ['Boolean']); // => [true]
cast(['true'], ['Boolean']); // => [true]
cast('10.13', ['Integer']); // => [10]
cast(['10.13'], ['Integer']); // => [10]
cast('10.13', ['Float']); // => [10.13]
cast(['10.13'], ['Float']); // => [10.13]
cast('10.13', ['Number']); // => [10.13]
cast(['10.13'], ['Number']); // => [10.13]
cast(1229380112300, ['Date']); // => [Date(2008-12-15T22:28:32.300Z)]
cast([1229380112300], ['Date']); // => [Date(2008-12-15T22:28:32.300Z)]

// short syntax
cast('10.13', 'Integer'); // => 10

// custom types
cast('value', (value) => `custom ${value}`); // => 'custom value'

API

Data Types

Methods

cast(value, type):Any > Converts the value to the specified type.

isAbsent(value):Boolean > Returns true if the value represents an empty value.

isArray(value):Boolean > Returns true if the value is an array.

isBoolean(value):Boolean > Returns true if the value is a boolean value.

isClass(value):Boolean > Returns true if the value represents a class object.

isDate(value):Boolean > Returns true if the value is a date object.

isFloat(value):Boolean > Returns true if the value is a float number.

isFunction(value):Boolean > Returns true if the value represents a function.

isInfinite(value):Boolean > Returns true if the provided value represents infinite number.

isInteger(value):Boolean > Returns true if the value is an integer number.

isNull(value):Boolean > Returns true if the provided value is null.

isNumber(value):Boolean > Returns true if the value is a number.

isObject(value):Boolean > Returns true if the value is an object (an object with keys).

isPresent(value):Boolean > Returns true if the value represents a present value.

isPromise(value):Boolean > Returns true if the value represents a promise object.

isString(value):Boolean > Returns true if the value is a string value.

isUndefined(value):Boolean > Returns true if the provided value is of type undefined.

isValue(value):Boolean > Returns true if the value is some sort of expected value.

toArray(value):Array > Converts the value to an array object.

toBoolean(value):Boolean > Converts the value to a boolean value.

toDate(value):Date > Converts the value to a date object.

toFloat(value):Number > Converts the value to a float value.

toInteger(value):Number > Converts the value to an integer value.

toNumber(value):Number > Converts the value to a number value.

toString(value):String > Converts the value to a string value.

License (MIT)

Copyright (c) 2016 Kristijan Sedlak 

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.