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Differences between strong and weak in Objective-C
...e you set the property to nil will the object get destroyed (unless one or more other objects also hold a strong reference to it).
In contrast, with a weak reference you signify that you don't want to have control over the object's lifetime. The object you are referencing weakly only lives on becau...
How to fix getImageData() error The canvas has been tainted by cross-origin data?
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Using ZXing to create an Android barcode scanning app [duplicate]
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The really nice way to do it involves a little more code, which will make sure the user is cleanly prompted to install Barcode Scanner if necessary. That's the other link he referred to. Copy the class at code.google.com/p/zxing/source/browse/trunk/android-integration/…...
How to change an Android app's name?
...rings.xml file. It can be found in Res -> Values -> strings.xml
See more here.
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curl json post request via terminal to a rails app
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constant pointer vs pointer on a constant value [duplicate]
...le
But though you can make out what declaration means, lets make it sound more sensible.
a is pointer to constant character variable
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How to generate a range of numbers between two numbers?
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Just to clarify, if you need a recursion of more than 32767, then it can be set to 0 which means nomax,
– Jayvee
Jul 10 '17 at 10:35
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How do I put a bunch of uncommitted changes aside while working on something else
...name as an alternative to -n, but mercurial doesn't seem to like --name anymore. Additionally, the --all is no longer required and mercurial will in fact freak out over it.
Patch queue the items using mq. This isn't too dissimilar to shelve in some respects, but behaves differently. The end result ...
How do I print a double value with full precision using cout?
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Is there an opposite to display:none?
... the document (to the browser default if not redefined elsewhere). But the more reliable approach is to have a class in CSS like
.invisible { display: none; }
and adding/removing this class name to/from element.className.
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