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How to check if an option is selected?

...the selected option this way: $('#mySelectBox option:selected')... LIVE DEMO But if you want to iterate all the options, do it with this.selected instead of this.isChecked which doesn't exist: $('#mySelectBox option').each(function() { if (this.selected) alert('this option is selecte...
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How to set focus on input field?

... Other than that, it's the same principal outlined above. Here is a quick demo Plunk Usage <input type="text" focus-on="focusMe"/> app.controller('MyCtrl', function($scope, focus) { focus('focusMe'); }); Source app.directive('focusOn', function() { return function(scope, elem, a...
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Check if user is using IE

...like Gecko Default string of Edge 12: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36 Edge/12.0 Default string of Edge 13 (thx @DrCord): Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0....
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Run an app on a multiple devices automatically in Android Studio

....42.35.5791312, built on August 9, 2019 JRE: 1.8.0_202-release-1483-b03 amd64 JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o Windows Server 2016 10.0 In this update they have added in-built option to run application on multiple devices. The IDE has a new drop-down menu that lets you quickly ...
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Insert space before capital letters

... Here is what i ended up using to convert a string to a title case, based on a few of the answers here: str = str .replace(/(_|-)/g, ' ') .trim() .replace(/\w\S*/g, function(str) { return str.charAt(0).toUpperCase() + str.substr(1) }) .replace(/([a-z])([A-Z])/g, '$1 $2') ....
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Golang tests in sub-directory

...y update and run traditional Go tests as well as GoConvey tests (which are based on behavior, and are more self-documenting than traditional Go tests). share | improve this answer | ...
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C++ Lock-free Hazard Pointer(冒险指针) - C/C++ - 清泛网 - 专注C/C++及内核技术

...expr int W = 1000; std::vector<std::thread> threads; std::atomic<uint64_t> sum{0}; for (int t = 0; t < N; ++t) { threads.emplace_back([&, t] { for (int i = 0; i < M; ++i) { if (i % W == 0) { // write less HazardPointer<A>::Update(target, new A(t * ...
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append multiple values for one key in a dictionary [duplicate]

... Mad PhysicistMad Physicist 64.9k1818 gold badges110110 silver badges165165 bronze badges ...
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How to handle both a single item and an array for the same property using JSON.net

... throw new NotImplementedException(); } } Here is an short program demonstrating the converter in action with your sample data: class Program { static void Main(string[] args) { string json = @" [ { ""email"": ""john.doe@sendgrid.com"", ...
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Immutability of Strings in Java

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