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fork() branches more than expected?

... when i=0 Process_1: Buffered text= 1 dot Process_2(created by Process_1): Buffered text= 1 dot when i=1 Process_3(created by Process_1): Inherit 1 buffered dot from Process_1 and prints 1 dot by itself. In total Process_3 prints 2 dots. ...
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ActionController::InvalidAuthenticityToken

...h were page cached. Pages got buffered with a stale authenticity token and all actions using the methods post/put/delete where recognized as forgery attempts. Error (422 Unprocessable Entity) was returned to the user. The solution for Rails 3: Add: skip_before_filter :verify_authenticity_token ...
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Could not load NIB in bundle

... Additionally, if you are using alloc init, instead of initWithNibName:bunle:, what you will get is a black screen. – Robert Childan Apr 20 '12 at 8:36 ...
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How to get notified about changes of the history via history.pushState?

...); } // ... whatever else you want to do // maybe call onhashchange e.handler return pushState.apply(history, arguments); }; })(window.history); Your jsfiddle becomes: window.onpopstate = history.onpushstate = function(e) { ... } You can monkey-patch window.h...
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Uploading both data and files in one form using Ajax?

... on_complete(response); }); } } it works well with all browsers, you don't need to serialize or prepare the data. one down side is that you can't monitor the progress. also, at least for chrome, the request will not appear in the "xhr" tab of the developer tools but under "d...
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Cropping an UIImage

...of the center of the image - I use this to take a UIImage and return a small, square representation of an image, similar to what's seen in the album view of the Photos app. (I know I could use a UIImageView and adjust the crop mode to achieve the same results, but these images are sometimes disp...
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convert_tz returns null

...ving these files to a different location such as /usr/share/zoneinfo/.bak/ allows for the command mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql to fully populate all of the expected timezone information. This may or may not be a bug in my installed version of MySQL: $ mysql -...
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JavaScript: filter() for Objects

...rible things will happen to your code. Things will break. You're extending all object types, including object literals. Here's a quick example you can try: // Extend Object.prototype Object.prototype.extended = "I'm everywhere!"; // See the result alert( {}.extended ); // "I'm ev...
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Google Espresso or Robotium [closed]

..., but also cause tests to run slower than necessary. API. Espresso has a small, well-defined and predictable API, which is open to customization. You tell the framework how to locate a UI element using standard hamcrest matchers and then instruct it to either perform an action or check an assertion ...
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Haml: Control whitespace around text

...t;a href='thing'>here</a>. precede: = precede '*' do %span.small Not really Produces: *<span class='small'>Not really</span> To answer the original question: I will first = succeed ',' do = link_to 'link somewhere', 'http://example.com' - if @condition then render...