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How to force a web browser NOT to cache images

... Armin Ronacher has the correct idea. The problem is random strings can collide. I would use: <img src="picture.jpg?1222259157.415" alt=""> Where "1222259157.415" is the current time on the server. Generate time by Javascript with performance.now()...
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how to make twitter bootstrap submenu to open on the left side?

...e too long, as in this fiddle: jsfiddle.net/szx4Y/446 Anyone have a quick idea for a fix? – Aaron Lifshin Jan 16 '15 at 18:47 2 ...
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Performance optimization strategies of last resort [closed]

...ples pinpoint. Profilers, even today, are just barely coming around to the idea that statements and call instructions are more important to locate, and easier to fix, than whole functions. I actually built a profiler to do this, but for a real down-and-dirty intimacy with what the code is doing, th...
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Best practices for API versioning? [closed]

... URL should NOT contain the versions. The version has nothing to do with "idea" of the resource you are requesting. You should try to think of the URL as being a path to the concept you would like - not how you want the item returned. The version dictates the representation of the object, not th...
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Python's json module, converts int dictionary keys to strings

... Thanks for that. Unfortunately I can't use Pickle, but your idea with the list is great. Will implement that now, cheers for the idea. – Charles Ritchie Sep 21 '09 at 2:34 ...
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Android Closing Activity Programmatically

... welcome to Stackoverflow. When answering questions, it's generally a good idea to check other answers to that question - someone might have already had the same idea and posted the answer! Which is exactly the case here. The top answer, and the accepted one already says finish() - so there isn't mu...
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Should I use `this` or `$scope`?

...ssues on it's own, and that adding another meaning / use for it not a good idea. I'd use $scope, for clarity's sake. UPDATE There is now the 'controller as' syntax, discussed here. I am not a fan, but now that it's a more 'official' AngularJS construct it deserves some attention. ...
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Rotated elements in CSS that affect their parent's height correctly

...ate(0, -100%); */ margin-top: -50%; /* Not vital, but possibly a good idea if the element you're rotating contains text and you want a single long vertical line of text and the pre-rotation width of your element is small enough that the text wraps: */ white-space: nowrap; } Stack ...
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Twitter Bootstrap - add top space between rows

... Editing or overriding the row in Twitter bootstrap is a bad idea, because this is a core part of the page scaffolding and you will need rows without a top margin. To solve this, instead create a new class "top-buffer" that adds the standard margin that you need. .top-buffer { marg...
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Why is processing a sorted array faster than processing an unsorted array?

...ou are the operator of a junction and you hear a train coming. You have no idea which way it is supposed to go. You stop the train to ask the driver which direction they want. And then you set the switch appropriately. Trains are heavy and have a lot of inertia. So they take forever to start up and ...