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Why do people say that Ruby is slow? [closed]

I like Ruby on Rails and I use it for all my web development projects. A few years ago there was a lot of talk about Rails being a memory hog and about how it didn't scale very well but these suggestions were put to bed by Gregg Pollack here. ...
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How to disable scrolling temporarily?

...e scrolling is that when you scroll while scrollTo is animating, it gets really ugly ;) 35 Answers ...
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What is the difference between a web API and a web service?

... A web service typically offers a WSDL from which you can create client stubs automatically. Web Services are based on the SOAP protocol. ASP.NET Web API is a newer Microsoft framework which helps you to build REST based interfaces. The response...
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How can you get the Manifest Version number from the App's (Layout) XML variables?

...ntext.getPackageName(), 0).versionName; Either of these solutions would allow for placing the version name in XML. Unfortunately there isn't a nice simple solution, like android.R.string.version or something like that. sh...
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Difference between “git checkout ” and “git checkout -​- ”

...his is not Git-specific, it's a general Unix command line convention. Normally you use it to clarify that an argument is a file name rather than an option, e.g. rm -f # does nothing rm -- -f # deletes a file named "-f" git checkout1 also takes -- to mean that subsequent arguments are not ...
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“Bitmap too large to be uploaded into a texture”

... All rendering is based on OpenGL, so no you can't go over this limit (GL_MAX_TEXTURE_SIZE depends on the device, but the minimum is 2048x2048, so any image lower than 2048x2048 will fit). With such big images, if you want to...
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What's the (hidden) cost of Scala's lazy val?

...at I was posting! – oxbow_lakes Jun 16 '10 at 9:25 8 @Mitch -- I hope the implementation has chan...
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Unique Key constraints for multiple columns in Entity Framework

... third approach may not necessarily be the best. (I like the first one actually.) I personally prefer not having any EF artifacts carried over into my entity classes. – Najeeb Nov 11 '17 at 12:45 ...
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Redirecting from HTTP to HTTPS with PHP

...method. – Usman Zaheer Apr 9 '12 at 16:14 6 I had to test if( $_SERVER['HTTPS'] == "off") to get ...
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How to check if an object is a list or tuple (but not string)?

... | edited Apr 16 '18 at 14:21 sorin 128k133133 gold badges440440 silver badges674674 bronze badges ...