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How can I programmatically determine if my app is running in the iphone simulator?

...er "Compiling source code conditionally" The relevant definition is TARGET_OS_SIMULATOR, which is defined in /usr/include/TargetConditionals.h within the iOS framework. On earlier versions of the toolchain, you had to write: #include "TargetConditionals.h" but this is no longer necessary on the ...
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Make a link in the Android browser start up my app?

...o look at the <intent-filter> element of your Mainfest file. Specifically, take a look at the documentation for the <data> sub-element. Basically, what you'll need to do is define your own scheme. Something along the lines of: <intent-filter> <data android:scheme="anton" /...
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this.setState isn't merging states as I would expect

...construct a new state and then call setState() on that: var newSelected = _.extend({}, this.state.selected); newSelected.name = 'Barfoo'; this.setState({ selected: newSelected }); I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing sele...
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How to do URL decoding in Java?

... { String result = java.net.URLDecoder.decode(url, StandardCharsets.UTF_8.name()); } catch (UnsupportedEncodingException e) { // not going to happen - value came from JDK's own StandardCharsets } Java 10 added direct support for Charset to the API, meaning there's no need to catch Unsuppor...
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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?

...cessary instead of DateTime. So use Time.strptime("1318996912345",'%Q').to_f and you will see the milliseconds preserved, while DateTime.strptime("1318996912345",'%Q').to_f does not preserve it. – skensell Feb 22 '17 at 15:20 ...
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What is a word boundary in regex?

... be "identifier" characters (alnums and underscore), not as anything especially useful for English. – hobbs Aug 24 '09 at 21:02 ...
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音乐制作器 · App Inventor 2 中文网

... 4 个音频播放器进来,按乐器分别重命名: 音频播放器_鼓、钢琴播放器、音频播放器_合成器…… 每个播放器都要设两个属性: 源文件 —— 选对应的那段循环音频。 循环播放 —— 勾上,这样一段放完会自动从头再来,...
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Remove all the children DOM elements in div

...by references from other JS objects. For example: a gfx surface references all its children, a group references all its children too, and so on. Deleting just DOM nodes is not enough. – Eugene Lazutkin Jul 2 '13 at 22:16 ...
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Convert Elixir string to integer or float

...er directly. If you want to do that, see @Szymon Jeż answer with String.to_integer/1 – user4275029 Sep 26 '16 at 12:27 6 ...
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@selector() in Swift?

... for: .touchUpInside) view.perform(#selector(UIView.insertSubview(_:aboveSubview:)), with: button, with: otherButton) The great thing about this approach? A function reference is checked by the Swift compiler, so you can use the #selector expression only with class/method pair...