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Fatal error: unexpectedly found nil while unwrapping an Optional values [duplicate]

...ntifier: String!) -> AnyObject! // Used by the delegate to acquire an already allocated cell, in lieu of allocating a new one. That's determined by the exclamation mark after AnyObject: AnyObject! So, first thing to consider is, what is an "Implicitly Unwrapped Optional"? The Swift Prog...
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What's the difference between MemoryCache.Add and MemoryCache.Set?

I read the MSDN documentation but didn't really understand it. 1 Answer 1 ...
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How do I pass data between Activities in Android application?

... And to read data from other Activity use Long session_ids=getIntent().getExtras().getLong("EXTRA_SESSION_IDS"); – Farid Apr 9 '16 at 18:39 ...
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Using pip behind a proxy with CNTLM

... To setup CNTLM for windows, follow this article. For Ubuntu, read my blog post. Edit: Basically, to use CNTLM in any platform, you need to setup your username and hashed password, before using http://127.0.0.1:3128 as a proxy to your parent proxy. Edit the config and add important...
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How do I find and view a TFS changeset by comment text?

... I admit, at first I cringed when I first read this, but then I said to heck with third party tools, this idea works just fine. Thank you! – Chris Hawkes Mar 4 '16 at 19:49 ...
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Does IE9 support console.log, and is it a real function?

... After reading the article from Marc Cliament's comment above, I've now changed my all-purpose cross-browser console.log function to look like this: function log() { "use strict"; if (typeof(console) !== "undefined" &&...
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Convert a list of characters into a string

... Premature optimization. This is so much hard to read and understand what's going on. Unless the user NEEDS performance in the operation, a simple ''.join() is much more readable. – Luiz Damim Oct 26 '12 at 10:24 ...
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How to avoid .pyc files?

... Name -------- ---- ---- ---- 8467 11-26-02 22:30 jwzthreading.py -------- ------- 8467 1 file $ ./python Python 2.3 (#1, Aug 1 2003, 19:54:32) >>> import sys >>> sys.path.insert(0, '/tmp/example.zip') # Add .zip file ...
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PHP how to get local IP of system

...k. It sounds weird i know. It is not nice to downvote the answer for that. Read the answer. – Codebeat Feb 12 '13 at 0:59 ...
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Is there a way to detach matplotlib plots so that the computation can continue?

... Thanks! Since I don't have Python 2.6 yet on my system, I used threading.Thread as a substitute for Process. I observed that subsequent print statements become unbearably slow (third print, I issued KeyboardInterrupt after 1 min wait). Is this an effect of using threading instead of multip...