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What is the difference between ng-if and ng-show/ng-hide

... <div ng-if="0"></div> When an element is removed using ngIf its scope is destroyed and a new scope is created when the element is restored. The scope created within ngIf inherits from its parent scope using prototypal inheritance. If ngModel is used within ngIf to bind to a JavaScrip...
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What to learn for making Java web applications in Java EE 6? [closed]

...en if I know that this will be controversial, my advice would be to start with Java EE 6 only. So, grab GlassFish v3 and either get the book Beginning Java EE 6 Platform with GlassFish 3: From Novice to Professional or follow the Java EE 6 tutorial. In my opinion, the book (that I've started to read...
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How does akka compare to Erlang? [closed]

I've been looking at akka recently and it's pretty impressive. It looks like it has most of the killer features of erlang - location transparency, supervision hierarchies, and more. Are there any features erlang has that akka doesn't? ...
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What is the difference between SAX and DOM?

...sing the XML, and encounters a tag starting (e.g. <something>), then it triggers the tagStarted event (actual name of event might differ). Similarly when the end of the tag is met while parsing (</something>), it triggers tagEnded. Using a SAX parser implies you need to handle these even...
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Why doesn't indexOf work on an array IE8?

...he below function works fine on Opera, Firefox and Chrome. However, in IE8 it fails on the if ( allowed.indexOf(ext[1]) == -1) part. ...
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Android Min SDK Version vs. Target SDK Version

When it comes to developing applications for Android, what is the difference between Min and Target SDK version? Eclipse won't let me create a new project unless Min and Target versions are the same! ...
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Adjusting the Xcode iPhone simulator scale and size [duplicate]

... You can't have 1:1 ratio. However you can scale it from the iOS Simulator > Window > Scale menu. share | improve this answer | follow ...
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Cannot import the keyfile 'blah.pfx' - error 'The keyfile may be password protected'

...However, the "Developer Command Prompt" installed by Visual Studio adds additional information that usually includes the correct location. Based on your post that would look like sn -i companyname.pfx VS_KEY_3E185446540E7F7A This must be run from the location of your PFX file, if you have the sol...
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What is the meaning of #XXX in code comments?

I have seen this a lot in code, even vim marks it as a special case. #TODO and #FIXME are two other fix markers vim highlights but what does #XXX mean? ...
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Is there a standard function to check for null, undefined, or blank variables in JavaScript?

...vaScript function that checks that a variable has a value and ensures that it's not undefined or null ? I've got this code, but I'm not sure if it covers all cases: ...