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How to hide a in a menu with CSS?

...: none. FF won't do it (technically invalid HTML, per the spec) but Chrome and IE will and it will hide the option. EDIT: Oh yeah, I already implemented this in jQuery: jQuery.fn.toggleOption = function( show ) { jQuery( this ).toggle( show ); if( show ) { if( jQuery( this ).parent...
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Why java.util.Optional is not Serializable, how to serialize the object with such fields

...The short answer is that the Java Lambda (JSR-335) expert group considered and rejected it. That note, and this one and this one indicate that the primary design goal for Optional is to be used as the return value of functions when a return value might be absent. The intent is that the caller immedi...
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How to use Git Revert

...tion(+), 1 deletion(-) In this example the commit history has two commits and the last one is a mistake. Using git revert: $ git revert HEAD [master 1db4eeb] Revert "bad update" 1 file changed, 1 insertion(+), 1 deletion(-) There will be 3 commits in the log: $ git log --oneline 1db4eeb Revert "b...
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Simulate low network connectivity for Android [closed]

...ike to test my application for cases of low network connectivity. Except standing in the elevator, what is the best way to do this? I've tried wrapping my phone in an aluminum foil, but it didn't help much. ...
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Understanding implicit in Scala

I was making my way through the Scala playframework tutorial and I came across this snippet of code which had me puzzled: ...
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Remove directory from remote repository after adding them to .gitignore

I committed and pushed some directory to github. After that, I altered the .gitignore file adding a directory that should be ignored. Everything works fine, but the (now ignored) directory stays on github. ...
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Loading cross-domain endpoint with AJAX

...etrieve data from a different domain, subdomain, port, or protocol. Script and JSONP requests are not subject to the same origin policy restrictions. There are some ways to overcome the cross-domain barrier: CORS Proxy Alternatives Ways to circumvent the same-origin policy Breaking The Cross Dom...
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Overflow:hidden dots at the end

Let's say I have a string " I like big butts and I cannot lie " and I cut it with overflow:hidden , so it displays something like this: ...
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Swift make method parameter mutable?

... inout keyword should be placed between parameter name and parameter type like this: func reduceToZero(x: inout Int) in current Swift 3 version. – Agustí Sánchez Sep 24 '16 at 8:59 ...
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Really Cheap Command-Line Option Parsing in Ruby

...he bottom of this post before replying. People keep posting their new gems and libraries and whatnot, which clearly don't meet the requirements. ...