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Download data url file

I'm playing with the idea of making a completely JavaScript-based zip/unzip utility that anyone can access from a browser. They can just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in. ...
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Regex lookahead, lookbehind and atomic groups

...s. They check for a regex (towards right or left of the current position - based on ahead or behind), succeeds or fails when a match is found (based on if it is positive or negative) and discards the matched portion. They don't consume any character - the matching for regex following them (if any), ...
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How do I prevent site scraping? [closed]

I have a fairly large music website with a large artist database. I've been noticing other music sites scraping our site's data (I enter dummy Artist names here and there and then do google searches for them). ...
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C# Java HashMap equivalent

... { return null_value; } return base[key]; } set { if (key == null) { null_value = value; } else { base[key] = value; } ...
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UIStatusBarStyle PreferredStatusBarStyle does not work on iOS 7

... my iPhone application built with Xcode 5 for iOS 7 I set UIViewControllerBasedStatusBarAppearance=YES in info.plist , and in my ViewController I have this code: ...
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Choosing Mobile Web HTML5 Framework [closed]

... and the coding style appears to be very similar to Sencha Touch, which is based on ExtJS, so if your team already has experience with ExtJS, it might be wise to consider one of these frameworks. Nimblekit: This appears to be for iOS only, not a good thing if you ever decide to expand your applicat...
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Check if element exists in jQuery [duplicate]

...') , however when using jQuery, you do need to put hash to target elements based on id just like CSS. share | improve this answer | follow | ...
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How do I replace NA values with zeros in an R dataframe?

... The dplyr hybridized options are now around 30% faster than the Base R subset reassigns. On a 100M datapoint dataframe mutate_all(~replace(., is.na(.), 0)) runs a half a second faster than the base R d[is.na(d)] <- 0 option. What one wants to avoid specifically is using an ifelse() or ...
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How would you go about parsing Markdown? [closed]

... uses an actual parser, is Jon MacFarleane’s peg-markdown. Its parser is based on a Parsing Expression Grammar parser generator called peg. EDIT: Mauricio Fernandez recently released his Simple Markup Markdown parser, which he wrote as part of his OcsiBlog Weblog Engine. Because the parser is wri...
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Installing SciPy with pip

... Prerequisite: sudo apt-get install build-essential gfortran libatlas-base-dev python-pip python-dev sudo pip install --upgrade pip Actual packages: sudo pip install numpy sudo pip install scipy Optional packages: sudo pip install matplotlib OR sudo apt-get install python-matplotlib su...