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TypeScript Objects as Dictionary types as in C#

... You may know this, but there are also some potential gotchas with this approach, the big one being that there's no safe and easy way to iterate through all the members. This code, for instance, shows that map contains two members: (...
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How to handle exceptions in a list comprehensions?

...onError: # handle division by zero error # leave empty for now pass Up to you to decide whether that is more cumbersome or not share | improve this answer | ...
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How do I exit a WPF application programmatically?

...he few years I've been using C# (Windows Forms), I've never used WPF. But, now I love WPF, but I don't know how I am supposed to exit my application when the user clicks on the Exit menu item from the File menu. ...
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What does a colon following a C++ constructor name do? [duplicate]

...constructed; if they have default constructors, those were already called. Now, if you assign a value to them in the body of the constructor, you are calling the copy assignment operator, which may mean releasing and reacquiring resources (e.g. memory) if the object has any. So in the case of prim...
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File I/O in Every Programming Language [closed]

...e should ever write readlines()[1] in example code. In this case you may know the file only has two lines, but someone else blithely assuming it's a good solution might try it on a million-line file and get a rather nasty surprise. – Porculus Aug 21 '10 at 20:...
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pandas three-way joining multiple dataframes on columns

... This is decent advice and has now been incorporated into pandas merging 101 (see the section on merging multiple dataframes). It's worth noting that if your join keys are unique, using pd.concat will result in simpler syntax: pd.concat([df.set_index('name...
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What GUI libraries are the JetBrains using?

...ecause IntelliJ IDEA was created back in 2000 when JavaFX didn't exist and now it's not feasible rewriting millions of lines of code and redesigning thousands of dialogs and UI elements for the doubtable benefits? – CrazyCoder Jul 3 '17 at 8:18 ...
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Android: How can I validate EditText input?

... you're welcome! :) now that you're validating it, could you share how are you going to inform the user of the validation failure? I'm currently looking for best methods for the same. – Niks May 19 '10 at 6...
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What is the difference between HAVING and WHERE in SQL?

...count for this, again an opportunity for improvement within the industry. Now consider for a moment removing WHERE from the language. This time the majority of queries in existence would need to be rewritten without an obvious alternative construct. Coders would have to get creative e.g. inner join...
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How to use multiple AWS Accounts from the command line?

...orrect that your answer is a different approach but it is very helpful to know where the information is stored, in particular if you intend to copy settings between profiles. – mgd Mar 14 '18 at 20:48 ...