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80 lines
2.6 KiB
JavaScript
80 lines
2.6 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Skywriter.
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*
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* The Initial Developer of the Original Code is
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* Mozilla.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Joe Walker (jwalker@mozilla.com)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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var objectToString = Object.prototype.toString;
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/**
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* Return true if it is a String
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*/
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exports.isString = function(it) {
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return it && objectToString.call(it) === "[object String]";
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};
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/**
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* Returns true if it is a Boolean.
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*/
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exports.isBoolean = function(it) {
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return it && objectToString.call(it) === "[object Boolean]";
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};
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/**
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* Returns true if it is a Number.
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*/
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exports.isNumber = function(it) {
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return it && objectToString.call(it) === "[object Number]" && isFinite(it);
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};
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/**
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* Hack copied from dojo.
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*/
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exports.isObject = function(it) {
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return it !== undefined &&
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(it === null || typeof it == "object" ||
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Array.isArray(it) || exports.isFunction(it));
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};
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/**
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* Is the passed object a function?
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* From dojo.isFunction()
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*/
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exports.isFunction = function(it) {
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return it && objectToString.call(it) === "[object Function]";
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};
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}); |