10 examples of 'check react version' in JavaScript

46
function reportOnReactVersion(node) {
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  if (!versionUtil.testReactVersion(context, '16.2.0')) {
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    context.report({
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      node,
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      message: 'Fragments are only supported starting from React v16.2. ' +
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        'Please disable the `react/jsx-fragments` rule in ESLint settings or upgrade your version of React.'
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    });
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    return true;
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  }
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  return false;
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}

47
checkVersion() {
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    console.log(`[VersionChecker] Checking if a new version is available...`);
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    this.getLatestVersion()
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        .then(latestVersion => {
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            const currentVersion = this.currentVersion;
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            this.lastVersionCheck = moment().format();
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            // Is current version older than the latest version
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            if (semver.lt(currentVersion, latestVersion)) {
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                console.log(`[VersionChecker] New version ${latestVersion} is available!`);
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                this.pushNewVersionStatus(latestVersion);
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                return;
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            }
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            console.log(`[VersionChecker] Already on the latest version ${latestVersion}.`);
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            const StatusManager = require('../status/StatusManager');
63
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            if (StatusManager.getStatusByKey(this.statusKey)) {
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                StatusManager.removeStatus(this.statusKey);
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            }
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        })
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        .catch(() => {
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            console.log(`[VersionChecker] Couldn't fetch the latest version of CIMonitor.`);
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        });
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}

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checkVersion() {
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    this.log.info("Checking Package Version for Updates...");
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    return new Promise((resolve) => {
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        childProcess.exec(
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            `npm view ${packageFile.name} version`,
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            (error, stdout) => {
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                const newVer = stdout && stdout.trim();
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                if (newVer && compareVersions(stdout.trim(), packageFile.version) > 0) {
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                    this.log.warn(`---------------------------------------------------------------`);
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                    this.log.warn(`NOTICE: New version of ${packageFile.name} available: ${newVer}`);
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                    this.log.warn(`---------------------------------------------------------------`);
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                    resolve(true);
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                } else {
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                    this.log.info(`INFO: Your plugin version is up-to-date`);
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                    resolve(false);
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                }
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            }
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        );
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    });
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}

8
export function isReactVersion13() {
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	var version = React.version.split(".")[1];
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	return version === "13";
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};

7
function getReactNativeVersion() {
8
  if (!reactNativeVersion) {
9
    reactNativeVersion = minimist(process.argv.slice(2)).version || '';
10
11
    if (!reactNativeVersion) {
12
      reactNativeVersion = require('../maps/misc')['max-support-rn'];
13
    }
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  }
15
16
  return reactNativeVersion;
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}

70
async function checkVersion() {
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    const version = getVersion();
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    const hrTime = process.hrtime();
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    const ctime = hrTime[0] * 1000 + hrTime[1] / 1000000;
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    const ltime = settings.get('lastAccessTime');
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    const lastAccessVersion = getLastAccessVersion(ctime, ltime);
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    if (lastAccessVersion && (version == lastAccessVersion)) {
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        //version matched with cached version
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        return;
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    }
80
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    const pv = await latestVersion('@here/cli');
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    if (pv > version) {
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        console.log("herecli('" + version + "') is out of date. Latest version is " + pv + ". Use command 'npm install -g @here/cli' to update to the latest version");
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        process.exit(1);
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    }
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    // version matched with current version. We are up to date
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    settings.set('lastAccessVersion', pv);
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    settings.set('lastAccessTime', ctime);
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}

6
function checkVersion({ version, versionLimit, notify = [] }) {
7
    if (lt(normalizeVersion(version), normalizeVersion(versionLimit))) {
8
        notify.forEach(errorLog);
9
        return false;
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    }
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    return true;
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}

90
export function getInstalledPropTypesVersion(): number {
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  if (installedVersion) {
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    return installedVersion;
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  }
94
95
  try {
96
    // eslint-disable-next-line global-require
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    installedVersion = parseFloat(require('prop-types/package.json').version);
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  } catch {
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    // Swallow
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  }
101
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  return installedVersion;
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}

4
export default function getReactNativeVersion(
5
  cwd: string
6
): semver.SemVer | undefined {
7
  const { version } = require(path.join(
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    cwd,
9
    'node_modules/react-native/package.json'
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  ));
11
12
  const parsedVersion = semver.parse(version);
13
  if (!parsedVersion) {
14
    return undefined;
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  }
16
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  return parsedVersion;
18
}

322
function printVersionsAndExit(reactNativePackageJsonPath) {
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  console.log(`react-native-cli: ${require('./package.json').version}`);
324
  try {
325
    console.log(`react-native: ${require(reactNativePackageJsonPath).version}`);
326
  } catch (e) {
327
    console.log(
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      'react-native: n/a - not inside a React Native project directory',
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    );
330
  }
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  process.exit();
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}