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Persistent invalid graphics state error when using ggplot2

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Is it possible to pass a flag to Gulp to have it run tasks in different ways?

...p doesn't offer any kind of util for that, but you can use one of the many command args parsers. I like yargs. Should be: var argv = require('yargs').argv; gulp.task('my-task', function() { return gulp.src(argv.a == 1 ? options.SCSS_SOURCE : options.OTHER_SOURCE) .pipe(sass({style:'nes...
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What are best practices that you use when writing Objective-C and Cocoa? [closed]

...bout? The empty () works for private categories in the .m file, and issues compile warnings if you do not implement the methods declared. 3) I have taken to putting dealloc at the top of the .m file, just below the @synthesize directives. Shouldn't what you dealloc be at the top of the list of thi...
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How do I create a datetime in Python from milliseconds?

...Date object in Java by java.util.Date(milliseconds) . How do I create the comparable in Python? 5 Answers ...
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How should I copy Strings in Java?

...te anything in the String pool of the JVM. Only string litterals and those commited to the pool via intern() are in the pool. – Snicolas May 15 '12 at 20:12 3 ...
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Suppress/ print without b' prefix for bytes in Python 3

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Using Moq to mock an asynchronous method for a unit test

... You're creating a task but never starting it, so it's never completing. However, don't just start the task - instead, change to using Task.FromResult<TResult> which will give you a task which has already completed: ... .Returns(Task.FromResult(new HttpResponseMessage(System.Net...
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Difference between val() and text()

... matched elements: .text() The result is a string that contains the combined text contents of all matched elements. This method works on both HTML and XML documents. Cannot be used on input elements. For input field text use the val attribute. .val() Get the content of the value...
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How to get the PATH environment-variable separator in Python?

... that separates elements of a shell PATH that is used to locate executable commands. os.sep or os.path.sep is what you need for filesystem paths. – Perry Dec 6 '13 at 19:47 ...
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SQLite Reset Primary Key Field

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