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The default for KeyValuePair

...ValuePair<T,U>) is an actual KeyValuePair that contains null, null. Experienced this myself. – Yokovaski May 13 at 10:18 add a comment  |  ...
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Convert .pfx to .cer

...d Window. You mention ".cer" extension in the question which is conventionally used for the DER encoded files. A binary encoding. Try the ".crt" file first and if it's not accepted, easy to convert from PEM to DER: openssl x509 -inform pem -in mycerts.crt -outform der -out mycerts.cer ...
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What does the smiley face “:)” mean in CSS?

...wsers. Also there's a hack for <= IE 8: div { color: blue; /* All browsers */ color: purple\9; /* IE8 and earlier */ *color: pink; /* IE7 and earlier */ } However that's not a good idea, they don't validate. You always feel free to work with Conditional comments for targeting...
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Rails 3: I want to list all paths defined in my rails application

I want to list all defined helper path functions (that are created from routes) in my rails 3 application, if that is possible. ...
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Comparison of CI Servers? [closed]

...oyments, functional tests, etc. To help with that planning I created this wallchart on the Elements of Enterprise CI (PDF; no registration required). Please don't let the "E-word" put you off; I just mean stuff beyond the basic fast feedback CI build. :) It isn't tool specific but lists a variety o...
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Difference between Destroy and Delete

... Basically destroy runs any callbacks on the model while delete doesn't. From the Rails API: ActiveRecord::Persistence.delete Deletes the record in the database and freezes this instance to reflect that no changes should be ...
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jQuery.click() vs onClick

...{ is better as it follows standard event registration model. (jQuery internally uses addEventListener and attachEvent). Basically registering an event in modern way is the unobtrusive way of handling events. Also to register more than one event listener for the target you can call addEventListener...
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Adding code to a javascript function programmatically

I'm attempting to customize an existing JS library without modifying the original JS code. This code loads in a few external JS files which I do have access to, and what I'd like to do is change one of the functions contained in the original file without copying and pasting the whole thing into the...
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Why were pandas merges in python faster than data.table merges in R in 2012?

...els) is large: 10,000. Does Rprof() reveal most of the time spent in the call sortedmatch(levels(i[[lc]]), levels(x[[rc]])? This isn't really the join itself (the algorithm), but a preliminary step. Recent efforts have gone into allowing character columns in keys, which should resolve that issue ...
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What Android tools and methods work best to find memory/resource leaks? [closed]

...e for bitmaps. Bitmaps on the previous activity layout are not properly deallocated by the garbage collector because they have crossed references to their activity. After many experiments I found a quite good solution for this problem. First, set the “id” attribute on the parent view of your X...