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“Cross origin requests are only supported for HTTP.” error when loading a local file

... ... the Ruby Gods say this works as well: ruby -run -e httpd . -p 8080 PHP Of course PHP also has its solution. php -S localhost:8000 share | improve this answer | fol...
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Difference between VARCHAR and TEXT in MySQL [duplicate]

...up to 16 MB, LONGTEXT up to 4 GB. If you use LONGTEXT and get the data via PHP (at least if you use mysqli without store_result), you maybe get a memory allocation error, because PHP tries to allocate 4 GB of memory to be sure the whole string can be buffered. This maybe also happens in other langua...
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How much faster is C++ than C#?

... flattened the 2d array to 1d to achieve better cache locality (contiguous block) C# (.NET 4.6.1) private static void TestArray() { const int rows = 5000; const int columns = 9000; DateTime t1 = System.DateTime.Now; double[][] arr = new double[rows][]; for (int i = 0; i < ro...
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How to remove/ignore :hover css style on touch devices

...UX. CSS-only - use media queries Place all your :hover rules in a @media block: @media (hover: hover) { a:hover { color: blue; } } or alternatively, override all your hover rules (compatible with older browsers): a:hover { color: blue; } @media (hover: none) { a:hover { color: inherit; } ...
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What and where are the stack and heap?

... as scratch space for a thread of execution. When a function is called, a block is reserved on the top of the stack for local variables and some bookkeeping data. When that function returns, the block becomes unused and can be used the next time a function is called. The stack is always reserved ...
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What's the difference between a proc and a lambda in Ruby?

...alue of that lambda, but using return in a proc returns from the enclosing block. lambda { return :foo }.call # => :foo return # => LocalJumpError: unexpected return Proc.new { return :foo }.call # => LocalJumpError: unexpected return So for most quick uses they're the same, but if you w...
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display: inline-block extra margin [duplicate]

I'm working with a few div s that are set to display: inline-block and have a set height and width . In the HTML, if there is a line break after each div there is an automatic 5px margin add to the right and bottom of the div. ...
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Using Default Arguments in a Function

I am confused about default values for PHP functions. Say I have a function like this: 12 Answers ...
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How do you deal with configuration files in source control?

... I use this approach, I just have a main.php.tmpl and when I checkout a new copy just copy it to main,php. I add the main.php file to the ignore list to avoid commit it by accident. – levhita Sep 15 '08 at 18:10 ...
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Catching an exception while using a Python 'with' statement

... As noted in stackoverflow.com/questions/5205811/…, the try block here is really too broad. No distinction is made between exceptions while creating the context manager and those in the body of the with statement, so it may not be a valid solution for all use cases. ...