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Rails how to run rake task

How do I run this rake file in terminal/console? 6 Answers 6 ...
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Application Skeleton to support multiple screens

...ur application with hdpi and then just take drawable-hdpi folder and Open Adode Photoshop(recommended) create Action of multiple size(just change the size according to percentage ratio) once Action created for all size then just do Batch Automate and give source(drawable-hdpi) and destination(drawab...
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What is sr-only in Bootstrap 3?

... According to bootstrap's documentation, the class is used to hide information intended only for screen readers from the layout of the rendered page. Screen readers will have trouble with your forms if you don't include a label for every input. Fo...
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How to take a screenshot programmatically on iOS

...or:@selector(scale)]) { UIGraphicsBeginImageContextWithOptions(self.window.bounds.size, NO, [UIScreen mainScreen].scale); } else { UIGraphicsBeginImageContext(self.window.bounds.size); } [self.window.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *image = UIGraphicsGetImageFr...
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Show hide fragment in android

... Don't mess with the visibility flags of the container - FragmentTransaction.hide/show does that internally for you. So the correct way to do this is: FragmentManager fm = getFragmentManager(); fm.beginTransaction() ...
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Reading large text files with streams in C#

....x on a 32-bit platform. Today, targeting .NET 4.5 on a 64-bit platform, I do not see any improvement. Related I came across a case where streaming a large, generated CSV file to the Response stream from an ASP.Net MVC action was very slow. Adding a BufferedStream improved performance by 100x in ...
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Cross-reference (named anchor) in markdown

Is there markdown syntax for the equivalent of: 10 Answers 10 ...
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List Git aliases

How do I print a list of my git aliases, i.e., something analogous to the bash alias command? 16 Answers ...
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How to get all properties values of a JavaScript Object (without knowing the keys)?

... Depending on which browsers you have to support, this can be done in a number of ways. The overwhelming majority of browsers in the wild support ECMAScript 5 (ES5), but be warned that many of the examples below use Object.keys, which is not available in IE < 9. See the compatibility...
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What's the difference between an id and a class?

... TBH, nobody use id any more unless it has something to do with integration with JavaScript (when you need an unique value). It is html leftover and you do not need to use it just because it exists. Saying that you have only one header and such so you need id instead of class migh...