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What is the best way to conditionally apply a class?

...nditionally, like: ng-class="{selected: $index==selectedIndex}" Angular now supports expressions that return an object. Each property (name) of this object is now considered as a class name and is applied depending on its value. However these ways are not functionally equal. Here is an example: ...
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Can You Get A Users Local LAN IP Address Via JavaScript?

I know the initial reaction to this question is "no" and "it can't be done" and "you shouldn't need it, you are doing something wrong". What I'm trying to do is get the users LAN IP address, and display it on the web page. Why? Because that's what the page I'm working on is all about, showing as muc...
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Understanding recursion [closed]

...value of its left child, if any, and the value of its right child, if any. Now recall that the children, if they're not null, are also nodes. So to sum the left child, we would add the value of child node itself to the value of its left child, if any, and the value of its right child, if any. So ...
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glVertexAttribPointer clarification

...fore you render, you need to enable it with glEnableVertexAttribArray(0);. Now that an attribute is enabled, you need to define the data it's going to use. In order to do so you need to bind your VBO - glBindBuffer(GL_ARRAY_BUFFER, myBuffer);. And now we can define the attribute - glVertexAttribPoin...
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href=“tel:” and mobile numbers

... Area code for a mobile telephone 1234 5678 - Mobile telephone number Now, when I want to dial via the international trunk, you need to drop the trunk prefix and replace it with the international dialing prefix + - Short hand for the country trunk number 61 - Country code for Au...
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Compiling Java 7 code via Maven

...ead of CurrentJDK). Not an elegant fix but I just hardcoded the export and now it works (PS: maven on OSX is at /usr/share/maven/bin/mvn) – Raekye Aug 4 '13 at 6:55 6 ...
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Sticky and NON-Sticky sessions

I want to know the difference between sticky- and non-sticky sessions. What I understood after reading from internet: 2 Ans...
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Does C# have extension properties?

...ent it is still not supported out of the box by Roslyn compiler ... Until now, the extension properties were not seen as valuable enough to be included in the previous versions of C# standard. C# 7 and C# 8.0 have seen this as proposal champion but it wasn't released yet, most of all because even i...
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How to detect escape key press with pure JS or jQuery?

... @LachlanMcD - be aware (5 years later!) that .unbind is now deprecated as of jQuery 3.0... you should use .off – freefaller Apr 24 '18 at 14:07 ...
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How can I get the DateTime for the start of the week?

How do I find the start of the week (both Sunday and Monday) knowing just the current time in C#? 32 Answers ...