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How to get last key in an array?

...e current array position. So, a portion of code such as this one should do the trick : $array = array( 'first' => 123, 'second' => 456, 'last' => 789, ); end($array); // move the internal pointer to the end of the array $key = key($array); // fetches the key of th...
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What do single quotes do in C++ when used on multiple characters?

... Is the length of such a multi-byte character constrained to 4 bytes? I.e. does it represent an int written out as characters? – Giorgio Sep 18 '11 at 8:47 ...
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Adding a directory to $LOAD_PATH (Ruby)

...urrently being executed to the $LOAD_PATH (or $:). I see the advantages of doing this in case you're not working with a gem. One seems more verbose than the other, obviously, but is there a reason to go with one over the other? ...
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Hyphen, underscore, or camelCase as word delimiter in URIs?

...core is a word character, meaning it should be considered part of a word. Double-click this in Chrome: camelCase Double-click this in Chrome: under_score Double-click this in Chrome: hyphen-ated See how Chrome (I hear Google makes a search engine too) only thinks one of those is two words? came...
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What does -D_XOPEN_SOURCE do/mean?

...on. I did find XOPEN_SOURCE , but there was little explanation of what it does. 4 Answers ...
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How do you turn a Mongoose document into a plain object?

I have a document from a mongoose find that I want to extend before JSON encoding and sending out as a response. If I try adding properties to the doc it is ignored. The properties don't appear in Object.getOwnPropertyNames(doc) making a normal extend not possible. The strange thing is that JSON....
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Rails: how do I validate that something is a boolean?

Does rails have a validator like validates_numericality_of for boolean or do I need to roll my own? 5 Answers ...
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How do you use https / SSL on localhost?

...u have to just set “SSL Enabled = true” in the project properties window. See the steps and pictures at this code project. IIS Express will generate a certificate for you (you'll be prompted for it, etc.). Note that depending on configuration the site may still automatically start with the ...
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Check if image exists on server using JavaScript?

...d like to call a JavaScript function every minute or so that would roughly do the following scratch code... 11 Answers ...
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Revert to a commit by a SHA hash in Git? [duplicate]

...t on top of the current HEAD with the exact state at a different commit, undoing all the intermediate commits, then you can use reset to create the correct state of the index to make the commit. # Reset the index and working tree to the desired tree # Ensure you have no uncommitted changes that you...