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How to create a directory if it doesn't exist using Node.js?

... If you're performing this operation on app boot or initialization, then its fine to block execution as you'd do the same thing if you were to do it async. If you're making a directory as a recurring operation then its bad practice but probably won't cause any perf...
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How does a debugger work?

...ming from the windowing system, the OS will generate events based on what happens in the process being debugged – for example an exception occurring. See WaitForDebugEvent. The debugger is able to read and write the target process' virtual memory, and even adjust its register values through APIs ...
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“wait_fences: failed to receive reply: 10004003”?

... Override -viewDidAppear:, not -viewWillAppear, and make sure to call [super viewDidAppear:]. You should not perform animations when you are not on screen ("will appear"). And the -viewDidAppear: docs explain that you must call super because t...
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Using SignalR with Redis messagebus failover using BookSleeve's ConnectionUtils.Connect()

I am trying to create a Redis message bus failover scenario with a SignalR app. 1 Answer ...
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How to make a cross-module variable?

...t; 1 2 Real-world example: Django's global_settings.py (though in Django apps settings are used by importing the object django.conf.settings). share | improve this answer | ...
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Get String in YYYYMMDD format from JS date object?

...reativity is broken @Miguel, but I can't think of a case where that would happen. Would you mind providing an example? – cloudworks Aug 5 '15 at 21:22 39 ...
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Daemon Threads Explanation

...d the Threads, I see that the Threads are still running. The same doesn't happens when this flag is set, the main program and the Threads are all terminated. How would you explain this? If I need to interrupt a program, I want all Threads to terminate as well. Do you know a better approach than this...
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img tag displays wrong orientation

...ot to add my own answer here. I was using Ruby on Rails so it might not be applicable to your projects in PHP or other frameworks. In my case, I was using Carrierwave gem for uploading the images. My solution was to add the following code to the uploader class to fix the EXIF problem before saving t...
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How to set environment variable or system property in spring tests?

... } } The static initializer code will be executed before the spring application context is initialized. share | improve this answer | follow | ...
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Cocoa: What's the difference between the frame and the bounds?

...nds have been exactly the same. That isn't always true, though. Look what happens if we rotate the view 20 degrees clockwise. (Rotation is done using transforms. See the the documentation and these view and layer examples for more information.) Frame origin = (20, 52) // These are just rough e...