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jQuery: checking if the value of a field is null (empty)

... be null, it's always a string value. this isn't entirely true. I've got a select containing no options. When I perform .val() on this it returns null. Jquery 1.7.2 – Liam Jan 14 '13 at 11:07 ...
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SourceKitService Terminated

...nd com.apple.CoreSimulator.CoreSimulatorService[3952]: The runtime for the selected device is not installed. What I did to correct this issue. If you are only having an issue within the context of a Swift project, try this alone first. If that doesn't work, then try all of the steps further belo...
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form serialize javascript (no framework)

... Here is pure JavaScript approach: var form = document.querySelector('form'); var data = new FormData(form); var req = new XMLHttpRequest(); req.send(data); Though it seems to be working only for POST requests. https://developer.mozilla.org/en-US/docs/Web/API/FormData ...
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The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path [duplicate]

... Add a runtime first and select project properties. Then check the server name from the 'Runtimes' tab as shown in the image. share | improve this...
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Error to install Nokogiri on OSX 10.9 Maverick?

...r navigating the animated GIFs here, all that I had to do was simply xcode-select --install and the gem install nokogiri worked fine. share | improve this answer | follow ...
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System.IO.Packaging

...4.0: In your project's Solution Explorer, right-click on References and select Add References from the context menu. Select Assemblies in the left-hand pane, then click the Browse button next to the File name field near the botton of the pane. Browse to .NET 4.0 reference assemblies and select Wi...
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CSS selector for a checked radio button's label

...ol: It is Adjacent sibling combinator. It combines two sequences of simple selectors having the same parent and the second one must come IMMEDIATELY after the first. As such: input[type="radio"]:checked+label{ font-weight: bold; } //a label that immediately follows an input of type radio that is...
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What is the precise meaning of “ours” and “theirs” in git?

...ics: Merges: $ git checkout master $ git merge feature If you want to select the version in master: $ git checkout --ours codefile.js If you want to select the version in feature: $ git checkout --theirs codefile.js Rebases: $ git checkout feature $ git rebase master If you want to s...
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How can I see the specific value of the sql_mode?

...mode. If you set it, then that query will show you the details: mysql> SELECT @@sql_mode; +------------+ | @@sql_mode | +------------+ | | +------------+ 1 row in set (0.00 sec) mysql> set sql_mode=ORACLE; Query OK, 0 rows affected (0.00 sec) mysql> SELECT @@sql_mode; +-------...
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:after vs. ::after

...nal difference between the CSS 2.1 :after and the CSS 3 ::after pseudo-selectors (other than ::after not being supported in older browsers)? Is there any practical reason to use the newer specification? ...