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file_put_contents - failed to open stream: Permission denied

... There is now a troubleshooting checklist for this kind of problems : stackoverflow.com/questions/36577020/… – Vic Seedoubleyew Aug 20 '16 at 9:26 ...
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?

...d your credentials in your SO profile. It took me some digging around. But now that I see that you seem to work on the VM team, I'll accept your answer as the official answer. :) – Thierry-Dimitri Roy Mar 11 '11 at 18:03 ...
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Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat

... Project -> Web -> ASP.NET Web Application (targeting .NET 4.6) 3.1 Now In the ASP.NET 4.5 templates, choose Empty as the template 3.2 This creates a blank solution with two nuget packages: Microsoft.CodeDom.Providers.DotNetCompilerPlatform v 1.0.0 Microsoft.Net.Compilers v 1.0.0 Install ...
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How to run travis-ci locally

... Run the attached client docker exec -it $BUILDID bash -l Run the job Now you are now inside your Travis environment. Run su - travis to begin. This step is well defined but it is more tedious and manual. You will find every command that Travis runs in the environment. To do this, look for for...
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Interface type check with Typescript

...ou want without the instanceof keyword as you can write custom type guards now: interface A{ member:string; } function instanceOfA(object: any): object is A { return 'member' in object; } var a:any={member:"foobar"}; if (instanceOfA(a)) { alert(a.member); } Lots of Members If you ...
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V

... There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; note the trick here: the contents are s...
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Are memory leaks ever ok? [closed]

... Now consider a few dozen of this allocations. Now consider having to move the "main" body to routine that gets called multiple times. Enjoy. - I agree with the sentiment that it's nto such a big problem in this scenario, but...
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How can I produce an effect similar to the iOS 7 blur view?

... API for this, and said that this approach was the "least evil" option for now and is fairly safe as written. Specifically he said do not try to do any animations of the frame or transform of this toolbar/view or anything like that, or bad things will happen. He also strongly suggested to file Radar...
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Why does datetime.datetime.utcnow() not contain timezone information?

...e like this import pytz # 3rd party: $ pip install pytz u = datetime.utcnow() u = u.replace(tzinfo=pytz.utc) #NOTE: it works only with a fixed utc offset now you can change timezones print(u.astimezone(pytz.timezone("America/New_York"))) To get the current time in a given timezone, you could...
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What's the fastest way to loop through an array in JavaScript?

... The blog post this answer is based on is now almost 4 years old, and a lot has changed in js engines in that time, see my answer below for an updated comparison. – jondavidjohn Aug 31 '11 at 3:01 ...