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How to get number of entries in a Lua table?

...ual, any of 3, 5 and 9 are valid results for #t. According to the manual, calling # on non-sequences is undefined. That means that any result (-1, 3, 3.14, 5, 9) is valid. – cubuspl42 May 12 '14 at 20:08 ...
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SVG Positioning

... hoping to use it like a container, so I could set its x position and then all the elements in that group would also move. But that doesn't seem to be possible. ...
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Get value from JToken that may not exist (best practices)

... @PaulHazen, it's not that bad... You just reinvented the wheel a bit is all. – devinbost Dec 22 '16 at 20:32 This d...
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How do I use vi keys in ipython under *nix?

... ipython --TerminalInteractiveShell.editing_mode=vi ... or to set it globally in the profile configuration (~/.ipython/profile_default/ipython_config.py; create it with ipython profile create if you don't have it) with: c.TerminalInteractiveShell.editing_mode = 'vi' ...
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Default filter in Django admin

How can I change the default filter choice from 'ALL'? I have a field named as status which has three values: activate , pending and rejected . When I use list_filter in Django admin, the filter is by default set to 'All' but I want to set it to pending by default. ...
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Store query result in a variable using in PL/pgSQL

...s, as @Pavel commented. I shortened the syntax with a table alias additionally. Update: I removed my code example and suggest to use IF EXISTS() instead like provided by @Pavel. share | improve thi...
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Are static fields inherited?

... 3 in all cases, since the static int total inherited by SomeDerivedClass is exactly the one in SomeClass, not a distinct variable. Edit: actually 4 in all cases, as @ejames spotted and pointed out in his answer, which see. Edit:...
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What exactly are iterator, iterable, and iteration?

...loop, or map, or a list comprehension, etc. in Python, the next method is called automatically to get each item from the iterator, thus going through the process of iteration. A good place to start learning would be the iterators section of the tutorial and the iterator types section of the standar...
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.NET WebAPI Serialization k_BackingField Nastiness

...rk with Web API. Just leave your model as is, and Web API would serialize all the public properties for you. Only if you want to have more control about what's included, you then decorate your class with [DataContract] and the properties to be included with [DataMember] (because both DCS and JSON...
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GitHub: make fork an “own project”

...tHub. Clone the forked repository you want to detach from its parent. Push all branches in this clone to your new repository. share | improve this answer | follow ...