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Listening for variable changes in JavaScript

... Yes, this is now completely possible! I know this is an old thread but now this effect is possible using accessors (getters and setters): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects#Defining_getters...
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Simple Log to File example for django 1.3+

...['console', 'logfile'], 'level': 'DEBUG', }, } } Now what does all of this mean? Formaters I like it to come out as the same style as ./manage.py runserver Handlers - I want two logs - a debug text file, and an info console. This allows me to really dig in (if needed) an...
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How does an underscore in front of a variable in a cocoa objective-c class work?

...ttributes have used an underscore _ in front of the variable. Does anyone know what this means? Or how it works? 9 Answers ...
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Adding Core Data to existing iPhone project

...etchedResultsController, managedObjectContext; After all of that you can now use this managedObjectContext to run all the usual fetchRequests needed for CoreData goodness! Enjoy share | improve th...
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C++ sorting and keeping track of indexes

...p;v](size_t i1, size_t i2) {return v[i1] < v[i2];}); return idx; } Now you can use the returned index vector in iterations such as for (auto i: sort_indexes(v)) { cout << v[i] << endl; } You can also choose to supply your original index vector, sort function, comparator, or ...
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ASP.NET Web API - PUT & DELETE Verbs Not Allowed - IIS 8

...dio 2012 RC. The installer also installs IIS 8 Express which Visual Studio now uses as the default web server. 19 Answers ...
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How do I execute a string containing Python code in Python?

...pser you should be mych more concerned with using exec at all (unless you know the code string comes from a trusted source). – bruno desthuilliers Dec 2 '19 at 17:00 add a com...
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pandas GroupBy columns with NaN (missing) values

... from pandas 1.1 you have better control over this behavior, NA values are now allowed in the grouper using dropna=False share | improve this answer | follow |...
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What's the difference between dynamic (C# 4) and var?

... var is static typed - the compiler and runtime know the type - they just save you some typing... the following are 100% identical: var s = "abc"; Console.WriteLine(s.Length); and string s = "abc"; Console.WriteLine(s.Length); All that happened was that the compiler f...
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Scala: write string to file in one statement

...if I look at /tmp/example.txt there is no. – user unknown Feb 9 '12 at 1:28 @user unknown, Sorry for missing out the '...