@intuitionrobotics/ts-common
Version:
47 lines • 1.7 kB
JavaScript
/*
* ts-common is the basic building blocks of our typescript projects
*
* Copyright (C) 2020 Intuition Robotics
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { BadImplementationException } from "../index.js";
/**
*
* @param firstVersion a version
* @param secondVersion another version
*
* @return -1 if first is greater
* 0 if versions match
* 1 if second is greater
*/
export function compareVersions(firstVersion, secondVersion) {
if (!firstVersion)
throw new BadImplementationException("First version is undefined");
if (!secondVersion)
throw new BadImplementationException("Second version is undefined");
const firstVersionAsArray = firstVersion.split("\.");
const secondVersionAsArray = secondVersion.split("\.");
for (let i = 0; i < firstVersionAsArray.length; i++) {
const secondVal = +secondVersionAsArray[i];
const firstVal = +firstVersionAsArray[i];
if (secondVal > firstVal)
return 1;
if (secondVal === firstVal)
continue;
if (secondVal < firstVal)
return -1;
}
return 0;
}
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