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What is the !! (not not) operator in JavaScript?
..., one could simply check for a property using the slightly more performant means of checking if the object in question has a property. There are two ways to do this:
// the native `hasOwnProperty` method
var qux = function(tag, atr) { return document.createElement(tag).hasOwnProperty(atr); }
// th...
How to get the changes on a branch in Git
...sions - it takes one or two revisions, and has defined the A...B syntax to mean how it's defined in the git-diff manpage. If git-diff did not explicitly define A...B, then that syntax would be invalid. Note that the git-rev-parse manpage describes A...B in the "Specifying Ranges" section, and everyt...
How to implement the activity stream in a social network
...lls me the record that the activity is related to. So if the activity type means "added favorite" then I know that the source_id refers to the ID of a favorite record.
The parent_id/parent_type are useful for my app - they tell me what the activity is related to. If a book was favorited, then pare...
Pass Array Parameter in SqlCommand
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I didn't mean to hijack the discussion, but I did... Thus far I use Npgsql that handles arrays fine as in '{1,2,3}' style arguments to a function (not a WHERE IN clause), but I'd rather use plain ODBC if not array hassle. I presume I ...
jQuery how to bind onclick event to dynamically added HTML element [duplicate]
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I understand your answer, didn't mean it was wrong. Surely, being able to dynamically inject some html (like a ul li of pictures loaded with ajax of infinite scroll stuff) and already having buttons bound to some action (like a lightbox) it's much more comf...
Error:(1, 0) Plugin with id 'com.android.application' not found
...his.. This error is the first thing you see when starting a new project. I mean, what were they thinking!?
– BdR
Mar 27 '15 at 14:04
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MySQL, update multiple tables with one query
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When you say multiple queries do you mean multiple SQL statements as in:
UPDATE table1 SET a=b WHERE c;
UPDATE table2 SET a=b WHERE d;
UPDATE table3 SET a=b WHERE e;
Or multiple query function calls as in:
mySqlQuery(UPDATE table1 SET a=b WHERE c;)
mySqlQuer...
How to kill a process running on particular port in Linux?
... will then eventually completely close the port after about 60 seconds. It means that you can't reuse the port for at least 60 seconds (unless you give the reuse option to the socket).
– Mark Lakata
Sep 3 '15 at 22:44
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Android-java- How to sort a list of objects by a certain value within the object
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"Android-java" is here by no means different than "normal java", so yes Collections.sort() would be a good approach.
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LINQ's Distinct() on a particular property
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@ashes999: I'm not sure what you mean. The code is present in the answer and in the library - depending on whether you're happy to take on a dependency.
– Jon Skeet
Feb 19 '13 at 17:07
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