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Explanation of …

I just stumbled upon something I've never seen before. In the source of Backbone.js's example TODO application ( Backbone TODO Example ) they had their templates inside a <script type = "text/template"></script> , which contained code that looks like something out of PHP but with JavaSc...
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Java project in Eclipse: The type java.lang.Object cannot be resolved. It is indirectly referenced f

... the project (It will rebuild the buildpath hence reconfiguring with the JDK libraries) OR Delete and Re-import the project and if necessary do the above steps again. The better cure is to try NetBeans instead of Eclipse :-) ...
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Getting attributes of a class

...ss' objects>, '__doc__': None, '__module__': '__main__', '__weakref__': <attribute '__weakref__' of 'MyClass' objects>, 'a': '34', 'b': '12', 'myfunc': <function __main__.myfunc>}>), ('__doc__', None), ('__module__', '__main__'), ('__weakref__', <attribute '...
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Select DISTINCT individual columns in django?

...egory').distinct() print q.query # See for yourself. # The query would look something like # SELECT DISTINCT "app_productorder"."category" FROM "app_productorder" There are a couple of things to remember here. First, this will return a ValuesQuerySet which behaves differently from a QuerySet. Whe...
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How to get a string after a specific substring?

...on world , i'm a beginner " print my_string.split("world",1)[1] split takes the word(or character) to split on and optionally a limit to the number of splits. In this example split on "world" and limit it to only one split. ...
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How to prove that a problem is NP complete?

...covers (that is, for some graph G, does it have a vertex cover set of size k such that every edge in G has at least one vertex in the cover set?) is in NP: our input X is some graph G and some number k (this is from the problem definition) Take our information C to be "any possible subset of verti...
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Check if a number has a decimal place/is a whole number

I am looking for an easy way in JavaScript to check if a number has a decimal place in it (in order to determine if it is an integer). For instance, ...
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Difference between API and ABI

...n we write a program and want to use some library function we write code like: long howManyDecibels = 123L; int ok = livenMyHills( howManyDecibels); and we needed to know that there is a method livenMyHills(), which takes a long integer parameter. So as a Programming Interface it's all expresse...
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Squash my last X commits together using Git

... Use git rebase -i <after-this-commit> and replace "pick" on the second and subsequent commits with "squash" or "fixup", as described in the manual. In this example, <after-this-commit> is either the SHA1 hash or the relative location from the HEAD of the current branch fr...
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How can I write to the console in PHP?

...r or webug (webug has problems with the order of logs). More recently Clockwork is in active development which extends the Developer Tools by adding a new panel to provide useful debugging and profiling information. It provides out of the box support for Laravel 4 and Slim 2 and support can be adde...