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How to determine the first and last iteration in a foreach loop?

...fer a solution that does not require the initialization of the counter outside the loop, I propose comparing the current iteration key against the function that tells you the last / first key of the array. This becomes somewhat more efficient (and more readable) with the upcoming PHP 7.3. Solution...
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How to turn on/off ReactJS 'development mode'?

... The other answer assumes you are using external pre-built files from react, and while correct that is not how most folks are going to or should consume React as a package. Moreover, at this point most every React library and package also relies on the same convention to toggle dev t...
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I want to delete all bin and obj folders to force all projects to rebuild everything

...me "bin" -o -iname "obj" | xargs rm -rf Note that if your directories of filenames contain spaces or quotes, find will send those entries as-is, which xargs may split into multiple entries. If your shell supports them, -print0 and -0 will work around this short-coming, so the above examples become...
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Explicit vs implicit SQL joins

... Can you provide supporting documentation? This sounds wrong on multiple levels. – NotMe May 20 '09 at 14:28 21 ...
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Is there a valid reason for enforcing a maximum width of 80 characters in a code file, this day and

...In Visual Studio, with two panels side-by-side so I can see header and cpp file at the same time. – Enno Nov 13 '08 at 21:27 10 ...
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What is the GAC in .NET?

...09 04:22 PM <DIR> GAC_MSIL ...snip... 0 File(s) 0 bytes 9 Dir(s) 90,538,311,680 bytes free C:\Windows\assembly>cd GAC_64 C:\Windows\assembly\GAC_64>dir Directory of C:\Windows\assembly\GAC_64 06/17/2009 04:22 PM <DIR&g...
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Inversion of Control vs Dependency Injection

...guage. In some you can configure which implementations to use in metadata files (e.g. XML) which are less invasive. With some you can do IoC that would normally be impossible like inject an implementation at pointcuts. See also this Martin Fowler's article. ...
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What are the differences between delegates and events?

...roperties of the person selected. Here is how that works. We have three files that help us put this together: Mediator.cs -- static class holds the delegates Form1.cs -- main form DetailView.cs -- user control shows all details Here is the relevant code for each of the classes: class Mediat...
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How to convert a SVG to a PNG with ImageMagick?

I have a SVG file that has a defined size of 16x16. When I use ImageMagick's convert program to convert it into a PNG, then I get a 16x16 pixel PNG which is way too small: ...
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What is the Scala identifier “implicitly”?

...ightly docs which you don't even provide an actual link to. scala-lang.org/files/archive/nightly/docs/library/… This doesn't teach anything. See Niklaus Wirth or Turbo Pascal for examples of genuine docs. -1 – Thomas W Oct 24 '13 at 1:50 ...