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Where IN clause in LINQ [duplicate]

... source, params T[] list) { return list.Contains(source); } Now you call: var states = _objdatasources.StateList().Where(s => s.In(countrycodes)); You can pass individual values too: var states = tooManyStates.Where(s => s.In("x", "y", "z")); Feels more natural and closer to sql. ...
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How do I correctly clone a JavaScript object?

... if you know its name, but I don't know of any way to discover it automatically. Yet another snag in the quest for an elegant solution is the problem of setting up the prototype inheritance correctly. If your source object's prototype is Object, then simply creating a new general object with {} wil...
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Django: Get model from string?

...d in 1.9) in favor of the the new application loading system. -- Scott Woodall Found it. It's defined here: from django.db.models.loading import get_model Defined as: def get_model(self, app_label, model_name, seed_cache=True): ...
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Can a variable number of arguments be passed to a function?

...able to pass any number of arguments. def manyArgs(*arg): print "I was called with", len(arg), "arguments:", arg >>> manyArgs(1) I was called with 1 arguments: (1,) >>> manyArgs(1, 2, 3) I was called with 3 arguments: (1, 2, 3) As you can see, Python will unpack the arguments...
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Do I have to Close() a SQLConnection before it gets disposed?

Per my other question here about Disposable objects , should we call Close() before the end of a using block? 8 Answers ...
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Adding new column to existing DataFrame in Python pandas

... because if you have multiple rows, and you use the assignment, it assigns all rows of the new column with that value ( in your case e) which is usually undesirable. – Paniz Apr 27 '19 at 22:42 ...
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Chrome Dev Tools: How to trace network for a link that opens a new tab?

...e://net-export in the latest version of Chrome) for a detailed overview of all network events happening in your browser. Other possible solution, depending on your specific problem, may be to enable 'Preserve log' on the 'Network' tab: and force all links to open in the same tab by executing ...
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Error: No default engine was specified and no extension was provided

...err }); lines in your code with: res.json({ error: err }) PS: People usually also have message in the returned object: res.status(err.status || 500); res.json({ message: err.message, error: err }); share | ...
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Why should text files end with a newline?

I assume everyone here is familiar with the adage that all text files should end with a newline. I've known of this "rule" for years but I've always wondered — why? ...
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Python loop that also accesses previous and next values

... The edited version of this is still not logically sound: At the end of the loop obj and next_ will be the same object for the last iteration, which may have unintended side effects. – TemporalWolf Dec 5 '17 at 22:01 ...