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How can I remove all objects but one from the workspace in R?

I have a workspace with lots of objects and I would like to remove all but one. Ideally I would like to avoid having to type rm(obj.1, obj.2... obj.n) . Is it possible to indicate remove all objects but these ones ? ...
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Is it Linq or Lambda?

... This is LINQ (using query syntax): var _Results = from item in _List where item.Value == 1 select item; This is also LINQ (using method syntax): var _Results = _List.Where(x => x.Value == 1); It's interesting to note that bo...
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PHP - Extracting a property from an array of objects

...he question because, array_column doesn't work with an array of objects at all. Since PHP 7.0.0 is is possible: stackoverflow.com/a/23335938/655224 – algorhythm May 23 '17 at 6:36 ...
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How to enable or disable an anchor using jQuery?

... The app I'm currently working on does it with a CSS style in combination with javascript. a.disabled { color:gray; } Then whenever I want to disable a link I call $('thelink').addClass('disabled'); Then, in the click handle...
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What is the equivalent to a JavaScript setInterval/setTimeout in Android/Java?

...setInterval(function(){ Console.log("A Kiss every 5 seconds"); }, 5000); Approximate java Equivalent new Timer().scheduleAtFixedRate(new TimerTask(){ @Override public void run(){ Log.i("tag", "A Kiss every 5 seconds"); } },0,5000); setTimeout() function that works only after...
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What is a reasonable code coverage % for unit tests (and why)? [closed]

...and she knows those factors better than I do – it’s her code after all. There is no single, simple, answer, and she’s smart enough to handle the truth and work with that.” “I see,” said the young apprentice, “but if there is no single simple answer, then why did you ...
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Is it possible to set the equivalent of a src attribute of an img tag in CSS?

...urse you can use padding-left / padding-top to make rectangular images. Finally, the new image is put there using background. If the new background image is too large or too small, I recommend using background-size for example: background-size:cover; which fits your image into the allotted space. ...
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What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?

...ries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found. The searched-for class definition existed when the currently executing class was compiled, but ...
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If I fork someone else's private Github repo into my account, is it going to appear in my account as

... pretty sure this is a stupid question, but could you elaborate more especially on the last sentence? – Terence Ponce Mar 9 '12 at 5:56 1 ...
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How do I download a tarball from GitHub using cURL?

I am trying to download a tarball from GitHub using cURL , but it does not seem to be redirecting: 5 Answers ...