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Java RegEx meta character (.) and ordinary dot?

... RegEx, how to find out the difference between . (dot) the meta character and the normal dot as we using in any sentence. How to handle this kind of situation for other meta characters too like ( * , + , \d ,...) ...
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Set margin size when converting from Markdown to PDF with pandoc

I have created an RMarkdown file in RStudio and managed to knit it with knitr into an HTML and .md file. Next, I used pandoc to convert the .md file into a PDF file (I get an error if I try and convert from the .html file). However, the PDF that is produced have massive margins (like this http://...
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Clone Object without reference javascript [duplicate]

I have a big object with much data. And i want to clone this in other variable. When i set some param of the instance B has the same result in the original object: ...
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How to randomly pick an element from an array

I am looking for solution to pick number randomly from an integer array. 12 Answers 12...
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How to sort a list in Scala by two fields?

...ort a list in Scala by two fields, in this example I will sort by lastName and firstName? 4 Answers ...
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How do I scroll to an element using JavaScript?

...e an anchor to "focus" the div. I.e: <div id="myDiv"></div> and then use the following javascript: // the next line is required to work around a bug in WebKit (Chrome / Safari) location.href = "#"; location.href = "#myDiv"; ...
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How to create a self-signed certificate for a domain name for development?

...tificate feature, you cannot set the common name (CN) for the certificate, and therefore cannot create a certificate bound to your choice of subdomain. One way around the problem is to use makecert.exe, which is bundled with the .Net 2.0 SDK. On my server it's at: C:\Program Files\Microsoft.Net\SD...
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Unit Testing: DateTime.Now

...it tests that expects the 'current time' to be different than DateTime.Now and I don't want to change the computer's time, obviously. ...
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How default .equals and .hashCode will work for my classes?

...t's (generally speaking; if you inherit from a class that redefined equals and/or hashCode, then you'll use that implementation instead). From the documentation: equals The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, f...
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Set cookie and get cookie with JavaScript [duplicate]

... which CSS file I choose in my HTML. I have a form with a list of options, and different CSS files as values. When I choose a file, it should be saved to a cookie for about a week. The next time you open your HTML file, it should be the previous file you've chosen. ...