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How to use NSJSONSerialization

... Top hit in Google: NSJSONReadingMutableLeaves: "Specifies that leaf strings in the JSON object graph are created as instances of NSMutableString." – zaph Nov 11 '14 at 11:10 ...
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How does the NSAutoreleasePool autorelease pool work?

...ols operate like a stack. Instantiating a pool pushes that pool on to the top of that threads autorelease pool stack. -release causes that pool to pop from the stack AND any pools that were pushed on top of it, but for whatever reason were not popped. – johne ...
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Call An Asynchronous Javascript Function Synchronously

...lback to doSomething() to be called from the other callback, but I better stop before I get into trouble. ;) Oh, what the heck. You gave an example that suggests it can be done correctly, so I'm going to show that solution... function doSomething( func ) { function callBack(d) { func( d )...
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viewWillDisappear: Determine whether view controller is being popped or is showing a sub-view contro

...lready disappeared. For example, another viewcontroller could be pushed on top of the stack and then call popToRootViewControllerAnimated bypassing viewWillDisappear on the ones in the middle. – John K Dec 23 '16 at 0:38 ...
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How can I render a list select box (dropdown) with bootstrap?

...%; text-align:left;} .select .caret {position:absolute; right:10px; margin-top:10px;} .select:last-child>.btn {border-top-left-radius:5px; border-bottom-left-radius:5px;} .selected {padding-right:10px;} .option {width:100%;} ...
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Is it possible to set the equivalent of a src attribute of an img tag in CSS?

...This one gives a 16x16 image. Of course you can use padding-left / padding-top to make rectangular images. Finally, the new image is put there using background. If the new background image is too large or too small, I recommend using background-size for example: background-size:cover; which fits you...
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Does HTTP use UDP?

...rts can be used. This does not preclude HTTP from being implemented on top of any other protocol on the Internet, or on other networks. HTTP only presumes a reliable transport; any protocol that provides such guarantees can be used; the mapping of the HTTP/1.1 request and response st...
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CSS strikethrough different color from text?

...{ position:relative } and then del::after { content:'', position:absolute; top: 50%; left: 0; right:0; border-bottom: 1px solid #f00 }. – BorisOkunskiy Dec 5 '13 at 7:52 ...
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Django: “projects” vs “apps”

... What is to stop you using myproduct.myproduct? What you need to achieve that roughly consists of doing this: django-admin.py startproject myproduct cd myproduct mkdir myproduct touch myproduct/__init__.py touch myproduct/models.py touch...
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How do you disable viewport zooming on Mobile Safari?

...e but it might be worth pointing out that this needs to be applied at the "top level" page. If you have this meta tag applied to an iframe, it won't work unless the meta tag is also applied to the top-most page. – founddrama Feb 11 '13 at 14:43 ...