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optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?

... To get over the nil issue, I'm copying the code from the OP's link (api.rubyonrails.org/classes/ActionView/Base.html) <% if local_assigns.has_key? :headline %> Headline: <%= headline %> <% end %> -- has_key avoids the nil / false situation, and probably can be shortened to...
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Anatomy of a “Memory Leak”

... I have found this can happen in your application if you are using Windows API and COM (i.e. unmanaged code that has a bug in it or is not being managed correctly), in the framework and in third party components. I have also found not tiding up after using certain objects like pens can cause the iss...
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What is the difference between #import and #include in Objective-C?

...mport modules - that is oft-overlooked.. Modules improve access to the API of software libraries by replacing the textual preprocessor inclusion model with a more robust, more efficient semantic model. From the user’s perspective, the code looks only slightly different, because one uses an imp...
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Downloading jQuery UI CSS from Google's CDN

... The Google AJAX Libraries API, which includes jQuery UI (currently v1.10.3), also includes popular themes as per the jQuery UI blog: Google Ajax Libraries API (CDN) Uncompressed: http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.js Com...
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How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?

... async false is no longer supported for jQuery >= 1.8. Refer to api.jquery.com/jQuery.ajax – ken Aug 5 '15 at 8:43 22 ...
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How can I make a JUnit Test wait?

...that a specific condition occurs before you move on. It has a nice fluent api as well await().until(() -> { return yourConditionIsMet(); }); https://github.com/jayway/awaitility share | ...
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How to get Bitmap from an Uri?

... It seems that MediaStore.Images.Media.getBitmap was deprecated in API 29. The recommended way is to use ImageDecoder.createSource which was added in API 28. Here's how getting the bitmap would be done: val bitmap = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) { ImageDecoder....
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CA2202, how to solve this case

...of the classes. Personally, I think the real problem is the design of the APIs themselves. Having the nested classes default to presuming that it's OK to take ownership of another object created elsewhere seems highly questionable. I can see where that could be useful if the resulting object was ...
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Java - get pixel array from image

... making the getRGB() this way is faster/better/more optimal than the Color API's getRGB() ? Appreciate ! – mk7 Sep 21 '19 at 19:02 ...
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Using NumberPicker Widget with Strings

... isn't mentioned in the documentation so probably isn't part of the public api share | improve this answer | follow | ...