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Is it better to use Enumerable.Empty() as opposed to new List() to initialize an IEnumerable

...e main point. Even if you use empty array or empty list, those are objects and they are stored in memory. Than Garbage Collector has to take care of them. If you are dealing with high throughput application, it could be noticeable impact. Enumerable.Empty does not create an object per call thus put...
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Using a .php file to generate a MySQL dump

... You can use the exec() function to execute an external command. Note: between shell_exec() and exec(), I would choose the second one, which doesn't return the output to the PHP script -- no need for the PHP script to get the whole SQL dump as a string : you only need it written to a...
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VSTS 2010 SGEN : error : Could not load file or assembly (Exception from HRESULT: 0x80131515)

...experiencing a strange issue with VS2010. We use TFS to build our API dlls and we used to reference them in our projects usign a mapped network drive that was fully trusted. We have been working like that for at least two years and everything worked perfectly. ...
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python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B

... Small note: The cols and take_last parameters are depreciated and have been replaced by the subset and keep parameters. pandas.pydata.org/pandas-docs/version/0.17.1/generated/… – Jezzamon Dec 4 '15 at 4:22...
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What is the AppDelegate for and how do I know when to use it?

... I normally avoid the design approach implied by Andrew's use of the term "heart of your application". What I mean by this is that I think you should avoid lumping too many things in a central location -- good program design normally involves separating functionality by "ar...
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Can you detect “dragging” in jQuery?

...drags on the "a" element. Just look for a certain amount of change in an x and y mousemove event. – Ash Blue May 21 '14 at 23:45 ...
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sass --watch with automatic minify?

... All of the output styles are listed here (nested, expanded, compact, and compressed) – allicarn Aug 20 '13 at 14:59 ...
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How do you tell if caps lock is on using JavaScript?

...s/edit?js,output Also, here is a modified version (can someone test on mac and confirm) NEW VERSION: https://jsbin.com/xiconuv/edit?js,output NEW VERSION: function isCapslock(e) { const IS_MAC = /Mac/.test(navigator.platform); const charCode = e.charCode; const shiftKey = e.shiftKey; if (...
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How to hide elements without having them take space on the page?

... Try setting display:none to hide and set display:block to show. share | improve this answer | follow | ...
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Setup RSpec to test a gem (not Rails)

... used Bundler ( bundle gem my_gem ) to setup the structure for the new gem and edit the *.gemspec manually. I also added s.add_development_dependency "rspec", ">= 2.0.0" to gemspec and did a bundle install . ...