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79 lines (68 loc) · 2.84 KB
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/*
* Copyright (c) 2014 - present Adobe Systems Incorporated. All rights reserved.
*
* 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.
*
*/
define(function (require, exports, module) {
"use strict";
/**
* Used to validate whether type of unknown value is an integer.
*
* @param {*} value Value for which to validate its type
* @return {boolean} true if value is a finite integer
*/
function isInteger(value) {
// Validate value is a number
if (typeof (value) !== "number" || isNaN(parseInt(value, 10))) {
return false;
}
// Validate number is an integer
if (Math.floor(value) !== value) {
return false;
}
// Validate number is finite
if (!isFinite(value)) {
return false;
}
return true;
}
/**
* Used to validate whether type of unknown value is an integer, and, if so,
* is it within the option lower and upper limits.
*
* @param {*} value Value for which to validate its type
* @param {number=} lowerLimit Optional lower limit (inclusive)
* @param {number=} upperLimit Optional upper limit (inclusive)
* @return {boolean} true if value is an interger, and optionally in specified range.
*/
function isIntegerInRange(value, lowerLimit, upperLimit) {
// Validate value is an integer
if (!isInteger(value)) {
return false;
}
// Validate integer is in range
var hasLowerLimt = (typeof (lowerLimit) === "number"),
hasUpperLimt = (typeof (upperLimit) === "number");
return ((!hasLowerLimt || value >= lowerLimit) && (!hasUpperLimt || value <= upperLimit));
}
// Define public API
exports.isInteger = isInteger;
exports.isIntegerInRange = isIntegerInRange;
});