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https://issues.apache.org/jira/browse/CB-13650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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jcesarmobile closed CB-13650.
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Resolution: Not A Problem
Yeah, this is an ES6 feature and iOS 9 doesn't support it, closing as not a
problem
> Javascript functions with default parameters cause app to be inoperable
> -----------------------------------------------------------------------
>
> Key: CB-13650
> URL: https://issues.apache.org/jira/browse/CB-13650
> Project: Apache Cordova
> Issue Type: Bug
> Components: cordova-ios
> Affects Versions: [email protected]
> Environment: Xcode
> 9.2
> cordova --version
> 7.1.0
> Installed platforms:
> ios 4.5.1
> iOS
> 9.3.5 (which is latest version available for iPod Touch)
> Reporter: Ralph Gossa
> Assignee: Suraj Pindoria
>
> Having Javascript functions with default parameters cause app to be
> inoperable on certain iOS platforms
> How to re-create the issue:
> cordova create test
> cd test
> cordova platform add ios
> Open the generated test.xcodeproj with Xcode
>
> Add a javascript function with a default parameter to index.js, example:
> /* default parameter causes app to be inoperable on iPod touch running iOS
> 9.3*/
> function foo (a, b = 1) {
> b = 1;
> return b;
> }
> App with default parameters runs find in emulator and on iPhones running
> current iOS.
> However app does not initialize properly on iPod Touch running iOS 9.3. It
> was working okay until I upgraded XCode and cordova. The function does not
> even need to be called for the app to become inoperable.
> If the default parameter is removed from the Javascript function, the app
> runs fine.
> XCode output with Javascript function containing default parameter
> -----begin------
> 2017-12-08 10:29:41.783 paramtest[1125:133765] DiskCookieStorage changing
> policy from 2 to 0, cookie file:
> file:///private/var/mobile/Containers/Data/Application/1C726E4F-A05A-418A-A37F-1877E71B1E60/Library/Cookies/Cookies.binarycookies
> 2017-12-08 10:29:41.962 paramtest[1125:133765] Apache Cordova native platform
> version 4.5.3 is starting.
> 2017-12-08 10:29:41.964 paramtest[1125:133765] Multi-tasking -> Device: YES,
> App: YES
> 2017-12-08 10:29:41.993 paramtest[1125:133765]
> Started backup to iCloud! Please be careful.
> Your application might be rejected by Apple if you store too much data.
> For more information please read "iOS Data Storage Guidelines" at:
> https://developer.apple.com/icloud/documentation/data-storage/
> To disable web storage backup to iCloud, set the BackupWebStorage preference
> to "local" in the Cordova config.xml file
> 2017-12-08 10:29:42.132 paramtest[1125:133765] Using UIWebView
> 2017-12-08 10:29:42.145 paramtest[1125:133765] [CDVTimer][console] 0.753999ms
> 2017-12-08 10:29:42.148 paramtest[1125:133765] [CDVTimer][handleopenurl]
> 0.678003ms
> 2017-12-08 10:29:42.158 paramtest[1125:133765]
> [CDVTimer][intentandnavigationfilter] 9.851992ms
> 2017-12-08 10:29:42.159 paramtest[1125:133765] [CDVTimer][gesturehandler]
> 0.428021ms
> 2017-12-08 10:29:42.159 paramtest[1125:133765] [CDVTimer][TotalPluginStartup]
> 15.917003ms
> 2017-12-08 10:29:42.799 paramtest[1125:133765] Resetting plugins due to page
> load.
> 2017-12-08 10:29:43.167 paramtest[1125:133765] Finished load of:
> file:///var/containers/Bundle/Application/81B5D70F-0B1F-455E-AB84-FA6BE125EEC2/paramtest.app/www/index.html
> ------end----
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