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JavaScript variables declare outside or inside loop?

...rmance, in JavaScript or ActionScript. var is a directive for the parser, and not a command executed at run-time. If a particular identifier has been declared var once or more anywhere in a function body(*), then all use of that identifier in the block will be referring to the local variable. It ma...
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Any reason not to start using the HTML 5 doctype? [closed]

...is: When serving as text/html, all you need a doctype for is to trigger standards mode. Beyond that, the doctype does nothing as far as browsers are concerned. When serving as text/html, whether you use XHTML markup or HTML markup, it's treated by browsers as HTML. So, really it comes down to usi...
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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

Let's say for example in a brand new ASP.NET MVC 5 application made from the MVC with Individual Accounts template, if I delete the Global.asax.cs class and move it's configuration code to Startup.cs Configuration() method as follow, what are the downsides? ...
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Is there a /dev/null on Windows?

... I think you want NUL, at least within a command prompt or batch files. For example: type c:\autoexec.bat > NUL doesn't create a file. (I believe the same is true if you try to create a file programmatically, but I haven't tried it.) In PowerShell, you want $nu...
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Why does GitHub recommend HTTPS over SSH?

... HTTPS because it is the easiest to set up on the widest range of networks and platforms, and by users who are new to all this. There is no inherent flaw in SSH (if there was they would disable it) -- in the links below, you will see that they still provide details about SSH connections too: HTTP...
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How do I generate random numbers in Dart?

How do I generate random numbers using Dart? 13 Answers 13 ...
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JavaScript style for optional callbacks

...ave some functions which occasionally (not always) will receive a callback and run it. Is checking if the callback is defined/function a good style or is there a better way? ...
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img src SVG changing the styles with CSS

... If your goal is just to change the color of the logo, and you don't necessarily NEED to use CSS, then don't use javascript or jquery as was suggested by some previous answers. To precisely answer the original question, just: Open your logo.svg in a text editor. look for fi...
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Callback after all asynchronous forEach callbacks are completed

...=== array.length) { callback(); } }); }); (thanks to @vanuan and others) This approach guarantees that all items are processed before invoking the "done" callback. You need to use a counter that gets updated in the callback. Depending on the value of the index parameter does not provid...
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GitHub Windows client behind proxy

...s working. I am on a corporate Win 7 x64 computer behind a corporate proxy and firewall. Following various other posts and experimenting with multiple combinations of environment variables and config variables I have found the only way to get cloning and push updates to work is by using the HTTPS_PR...