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Why is null an object and what's the difference between null and undefined?

...defined) You: What is name? (*) JavaScript: name? What's a name? I don't know what you're talking about. You haven't ever mentioned any name before. Are you seeing some other scripting language on the (client-)side? name = null; You: What is name? JavaScript: I don't know. In short; undefined is w...
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Getting the location from an IP address [duplicate]

... I have been using hostip.info for a year now and I'm NOT impressed. It usually return unknown 9/10 checks – aron Jun 30 '10 at 14:32 ...
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Resize svg when window is resized in d3.js

...'height', 100) .attr('width', w); // now add lots of beautiful elements to your graph // ... } data_display(my_data); // call on page load window.addEventListener('resize', function(event){ data_display(my_data); // just call it again... } The crucial...
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Hyphen, underscore, or camelCase as word delimiter in URIs?

...s: http://inventwithpython.com/blog/2012/03/18/how-much-math-do-i-need-to-know-to-program-not-that-much-actually share | improve this answer | follow | ...
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Friend declaration in C++ - difference between public and private

...re's no difference - you just tell that class B is a friend of class A and now can access its private and protected members, that's all. share | improve this answer | follow ...
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Lisp in the real world

...from anyone who has used Lisp or seen it used in the "real world", or who knows whether it is considered a purely academic language. ...
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ASP.NET MVC 404 Error Handling [duplicate]

... here throw new PageNotFoundException("page or resource"); } Now, in my Action, I am throwing a Custom Exception that I have created. And my Controller is inheriting from a custom Controller Based class that I have created. The Custom Base Controller was created to override error handl...
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git - Your branch is ahead of 'origin/master' by 1 commit

... I resolved this by just running a simple: git pull Nothing more. Now it's showing: # On branch master nothing to commit, working directory clean share | improve this answer | ...
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How to implement a custom AlertDialog View

...o access the 'body' element of the created AlertDialog. I'd still like to know how to do this, but for now I will just try to inflate a view and use setView in the builder. – stormin986 May 8 '10 at 19:36 ...
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Difference between . and : in Lua

...ccessing obj --> 20 tab.obj:method(10) --> Accessing obj --> 10 Now imagine the __index metamethod did more than just printing something. Imagine it increased a counter, logged something to a file or deleted a random user from your database. There's a big difference between doing that twi...