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Removing multiple keys from a dictionary safely

... it might be more efficient to use for key in set(the_dict) & entries: and bypass the key in dict test. – DylanYoung Apr 15 at 15:30 add a comment  |  ...
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Using WebAPI or MVC to return JSON in ASP.NET

...g an ASP.NET MVC application that is client-script heavy, it will use JSON and jQuery to manipulate the DOM. 6 Answers ...
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Java 8 Streams - collect vs reduce

...t argument to the operator is the return value of the previous application and the second argument is the current stream element. collect is an aggregation operation where a "collection" is created and each element is "added" to that collection. Collections in different parts of the stream are then...
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Difference between save and saveAndFlush in Spring data jpa

... On saveAndFlush, changes will be flushed to DB immediately in this command. With save, this is not necessarily true, and might stay just in memory, until flush or commit commands are issued. But be aware, that even if you flush th...
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Link to reload current page

...ve been using: <a href=".">link</a> Have yet to find a case and/or browser where it does not work as intended. Period means the current path. You can also use .. to refer to the folder above the current path, for instance, if you have this file structure: page1.html folder1 page...
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proper way to sudo over ssh

...ch file;" EDIT Apparently it's important that you actually provide the command as a parameter, not through standard in (which makes sense in hindsight). – Limited Atonement Aug 10 '15 at 15:10 ...
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android splash screen sizes for ldpi,mdpi, hdpi, xhdpi displays ? - eg : 1024X768 pixels for ldpi

I have to design splash screens(images that fit screen while loading) for android application using phonegap. I have to design 4 size images that fit for 4types of screens like ldpi, mdpi , hdpi, xhdpi . Can anyone tell me exact sizes in pixels for these screens so I can design in that size ? ...
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AngularJS : Differences among = & @ in directive scope? [duplicate]

...hould help tie things together: http://jsfiddle.net/jeremylikness/3pvte/ And explained ... if your directive looks like this: <my-directive target="foo"/> Then you have these possibilities for scope: { target : '=' } This will bind scope.target (directive) to $scope.foo (outer scop...
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Why are my basic Heroku apps taking two seconds to load?

... gets unloaded (from the server memory). On the first hit it gets loaded and stays loaded until some time passes without anyone accessing it. This is done to save server resources. If no one uses your app why keep resources busy and not let someone who really needs use them ? If your app has a ...
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Paste multiple columns together

... no need for apply here; paste is vectorised, and that's more efficient – baptiste Jan 28 '13 at 21:49 1 ...