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warning about too many open figures

...se. plt.close('all') will close all open figures. The reason that del fig does not work is that the pyplot state-machine keeps a reference to the figure around (as it must if it is going to know what the 'current figure' is). This means that even if you delete your ref to the figure, there is at le...
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Why would I want stage before committing in Git?

... a practical perspective. Is staging something that exists in name only or does it serve a purpose? When you commit, its going to commit everything anyway, right? Yes and no. Git's design here is somewhat peculiar. There exist version control systems that don't require a separate staging step. F...
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How to add a touch event to a UIView?

... What does the CGPoint line do? – zakdances May 13 '12 at 2:11 2 ...
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.gitignore exclude folder but include specific subfolder

... (*) (*: unless certain conditions are met in git 2.8+, see below) Git doesn't list excluded directories for performance reasons, so any patterns on contained files have no effect, no matter where they are defined. Put a backslash ("\") in front of the first "!" for patterns that begin with...
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How do cache lines work?

... This answer makes absolutely no sense. What does the 64bit memory bandwidth (which is also wrong in that regard) to do with the 64 byte(!) not bit to do? Also the 10 to 30 ns are also totally wrong if you hit the Ram. It might be true for the L3 or L2 cache but not for...
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ng-repeat finish event

...some code at the end of the loop, here's a slightly simpler variation that doesn't require extra event handling: <div ng-controller="Ctrl"> <div class="thing" ng-repeat="thing in things" my-post-repeat-directive> thing {{thing}} </div> </div> function Ctrl($scope) ...
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What is the difference between Normalize.css and Reset CSS?

...tinguishable from normal text after including reset.css. So, normalize.css does not impose a visual starting point (homogeny) upon you. This may not be to everyone's taste. The best thing to do is experiment with both and see which gels with your preferences. Normalize.css corrects some common bugs ...
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Where is array's length property defined?

...erma, at some point, java must be built on lower level technology. If java doesn't exist, you can't build it with java. You have to use C++ (or something else, but C++ in this case) to build some primitive compilation for the rest of java to have context for its own existence. You cannot have classe...
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What should every JavaScript programmer know? [closed]

...his is determined at call-time, not bound; how consequently method-passing doesn't work like you expect from other languages; how closures or Function#bind may be used to get around that. Other ECMAScript Fifth Edition features like indexOf, forEach and the functional-programming methods on Array; h...
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Is it possible to delete an object's property in PHP?

... me, with PHP 7.1 unset($object[$key]) works and unset($object->{$key}) does not (to be more precise, unset($object['literal_key']) and unset($object->{'literal_key'})). PS Hm, I may be wrong, though, in thinking the thing I'm editing is an object, not an array – YakovL ...