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App Inventor 2 扩展 · App Inventor 2 中文网

...em in private versions of App Inventor that are hosted and managed individually. App Inventor Extensions let anyone create Extension Components. Extension components can be used in building projects, just like other components. The difference is that extension components can be distributed on th...
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PG::ConnectionBad - could not connect to server: Connection refused

... #2 is a great suggestion: "Check server.log". My error was actually caused by upgrading to Yosemite, the server log said: FATAL: could not open directory "pg_tblspc": No such file or directory. This answer helped me with that problem stackoverflow.com/questions/25970132/… ...
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How useful/important is REST HATEOAS ( maturity level 3)?

... members believe that a REST API has to be HATEOAS compliant and implement all Richardson's maturity levels ( http://martinfowler.com/articles/richardsonMaturityModel.html )! ...
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How can I add or update a query string parameter?

... @JarónBarends - Tweak value check to check against undefined and null to allow setting 0 values Third Update There was a bug where removing a querystring variable directly before a hashtag would lose the hashtag symbol which has been fixed Fourth Update Thanks @rooby for pointing out a regex o...
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How to get the name of the calling method?

... how can we get only call app method and ignore frameworks call ? – Matrix Sep 27 '17 at 9:31 add a comment ...
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How can I install a .ipa file to my iPhone simulator

...nd the Payload folder and moved the application inside to my desktop. Finally I moved that application to my iPhone simulators applications folder found at: HD > Applications > Xcode.app (right click - Show Package Contents) > Contents > Developer > Platforms > iPhoneSimulator....
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Best Practices for Laravel 4 Helpers and Basic Functions?

...lean way: Create a library. That way it'll be autoloaded ONLY when you actually use it. Create a libraries folder inside your app folder Create your library file, create a class in it, and add static functions to it Option 1: Edit start/global.php to add app_path().'/libraries' to the ClassLoader:...
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Is it possible to await an event instead of another async method?

In my C#/XAML metro app, there's a button which kicks off a long-running process. So, as recommended, I'm using async/await to make sure the UI thread doesn't get blocked: ...
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Disable JavaScript error in WebBrowser control

... Should also have added that this.AxIWebBrowser2.Silent = true suppresses all pop-ups, not just script errors, hence the WebBrowser.ScriptErrorsSuppressd appears to be improperly named. – redcalx Jun 12 '13 at 14:53 ...
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I lost my .keystore file?

...ed. So, there is no other way: you should issue another application. Generally, the only advise that exists on keystores: "always back it up!" share | improve this answer | ...