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What's the best way of structuring data on firebase?
...ize in places where read efficiency is a concern. This is a technique used by all the large scale apps (e.g. Twitter and Facebook) and although it goes against our DRY principles, it's generally a necessary feature of scalable apps.
The gist here is that you want to work hard on writes to make read...
How to use continue in jQuery each() loop?
...th a $(selector).each() loop and a $.each() loop at a particular iteration by making the callback function return false. Returning non-false is the same as a continue statement in a for loop; it will skip immediately to the next iteration.
return false; // this is equivalent of 'break' for jQuery l...
App can't be opened because it is from an unidentified developer
...utton saying Open Anyway, under the General tab.
You can avoid doing this by changing the options under Allow apps downloaded from:, however I would recommend keeping it at the default Mac App Store and identified developers.
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The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path [duplicate]
I have a project created by Maven integration in Eclipse. All work fine, but in the work space in all JSP files have this:
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Cleanest and most Pythonic way to get tomorrow's date?
... 0)
I would think that gmtime or localtime would take the value returned by mktime and given me back the original tuple, with 60 as the number of seconds. And this test shows that these leap seconds can just fade away...
>>> a = time.mktime(time.strptime("2008-12-31 23:59:60","%Y-%m-%d ...
Rails layouts per action?
... To me this is the more flexible answer. DRYing things out by applying layout "[...]" to the controller class only allows one statement effectively. If you have more than two layouts to deal with (say, admin, generic_app, tailored_app), you will experience Render and/or redirect wer...
What __init__ and self do on Python?
...ut that the first argument need not necessarily be called self, it just is by convention.
– Henry Gomersall
Jun 24 '12 at 19:37
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Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
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My view is to always use ++ and -- by themselves on a single line, as in:
i++;
array[i] = foo;
instead of
array[++i] = foo;
Anything beyond that can be confusing to some programmers and is just not worth it in my view. For loops are an exception, as the...
How to select first parent DIV using jQuery?
...nce to use .parents('div').eq(0) -- using that purse CSS selector FOLLOWED by jQuery to filter to just the first element will give you a slight performance boost -- see the 'Additional Notes' section on the jQuery :eq doc
– Noah Whitmore
Feb 6 '14 at 7:45
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json.net has key method?
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@WilliamT.Mallard In C# 6, you can simplify that by using the null-conditional index operator: myJObject["level1property"]?["level2property"].
– svick
Jan 4 '17 at 19:45
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