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How do I replace the *first instance* of a string in .NET?

...urrences of the regex pattern that you want to replace in the input string from the beginning of the string. I was hoping this could be done with a static Regex.Replace overload but unfortunately it appears you need a Regex instance to accomplish it. ...
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Python Unicode Encode Error

...'ignore') the 'ignore' part will tell it to just skip those characters. From the python docs: >>> u = unichr(40960) + u'abcd' + unichr(1972) >>> u.encode('utf-8') '\xea\x80\x80abcd\xde\xb4' >>> u.encode('ascii') Traceback (most recent call last): File "<stdin>"...
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In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?

... I guess this depends on what you're using to generate html from your markdown. I noticed, that jekyll (it's used by gihub.io pages by default) automatically adds the id="" attribute to headings in the html it generates. For example if you're markdown is My header --------- The re...
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How to enable/disable bluetooth programmatically in android

...is call returns true, then the adapter state will immediately transition from STATE_OFF to STATE_TURNING_ON, and some time later transition to either STATE_OFF or STATE_ON. If this call returns false then there was an immediate problem that will prevent the adapter from being turned on - suc...
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Python Flask Intentional Empty Response

Is there a way to return a response (from make_response() object or similar) with certain properties so that it doesn't render the page again and doesn't do anything else either. I am trying to run a code on the server without generating any output ...
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How to get the path of a running JAR file?

...f your class. Obviously, this will do odd things if your class was loaded from a non-file location. share | improve this answer | follow | ...
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What is the difference between

...%>. Prints something verbatim (i.e. w/o escaping) into erb file. (Taken from Ruby on Rails Guides.) <% -%> Avoids line break after expression. <%# %> Comments out code within brackets; not sent to client (as opposed to HTML comments). Visit Ruby Doc for more infos about ERB. ...
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Accessing nested JavaScript objects and arays by string path

... using reduce is an excellent solution (one can also use _.reduce() from the underscore or lodash library) – Alp May 22 '14 at 14:51 4 ...
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When should you not use virtual destructors?

...destructor when any of the below is true: No intention to derive classes from it No instantiation on the heap No intention to store in a pointer of a superclass No specific reason to avoid it unless you are really so pressed for memory. ...
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How to install JSTL? The absolute uri: http://java.sun.com/jstl/core cannot be resolved

...1.2.jar together. This is wrong. You're basically mixing JSTL 1.2 API+impl from Oracle with JSTL 1.1 impl from Apache. You need to remove any standard-xxx.jar. Just only the jstl-1.2.jar is sufficient. <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl&lt...