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How to step back in Eclipse debugger?

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How to create a trie in Python

...I'll add that creating a directed acyclic word graph (DAWG) would be a bit more complex, because you have to detect situations in which your current word shares a suffix with another word in the structure. In fact, this can get rather complex, depending on how you want to structure the DAWG! You may...
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How can I check for “undefined” in JavaScript? [duplicate]

... property was declared but just not initialized. Use the in operator for a more robust check. "theFu" in window; // true "theFoo" in window; // false If you are interested in knowing whether the variable hasn't been declared or has the value undefined, then use the typeof operator, which is guara...
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Difference between string and char[] types in C++

...will always have the overhead of a heap allocation. If you copy a text of more than 256 chars into the array, it might crash, produce ugly assertion messages or cause unexplainable (mis-)behavior somewhere else in your program. To determine the text's length, the array has to be scanned, character ...
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What are the differences between struct and class in C++?

...d when the class is declared class. And just for completeness' sake, the more widely known difference between class and struct is defined in (11.2): Member of a class defined with the keyword class are private by default. Members of a class defined with the keywords struct or union are...
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ObservableCollection Doesn't support AddRange method, so I get notified for each item added, besides

...tion so you can regret (useful when using with DataGrid, ListView and many more, that you can show an "Are you sure" confirmation to the user), the updated VB version is in the bottom of this message. Please accept my apology that the screen is too narrow to contain my code, I don't like it either....
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Docker - a way to give access to a host USB or serial device?

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How to make an HTTP POST web request

...ey are not deprecated, there are just newer (and is most cases, better and more flexible) ways of making web requests. In my opinion, for simple, non-critical operations, the old ways are just fine - but it's up to you and whatever you are most comfortable with. – Evan Mulawski...
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How to count the number of true elements in a NumPy bool array

...gt;>> np.sum(boolarr) 5 Of course, that is a bool-specific answer. More generally, you can use numpy.count_nonzero. >>> np.count_nonzero(boolarr) 5 share | improve this answer ...
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How much faster is Redis than mongoDB?

...t is able to fit in memory. Though ram is cheap, if you need to use/store more than 12-16GB of data, I'd see what your server options look like. – Tracker1 Jul 25 '12 at 21:46 53 ...