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Create array of symbols
...what bizarro syntax Ruby has thrown at us this time. I highly recommend avoiding obscure language features when perfectly readable alternatives exist, i.e. [:address, :city, :state].
– Alex
Aug 9 '16 at 5:48
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entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
... references with City. But everytime I try to save my contact, which is validated I get the exception "ADO.Net Entity Framework An entity object cannot be referenced by multiple instances of IEntityChangeTracker"
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How to get the return value from a thread in python?
The function foo below returns a string 'foo' . How can I get the value 'foo' which is returned from the thread's target?
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How does OpenID authentication work?
I am a little curious to know about how OpenID authentication works.
4 Answers
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Tab Vs Space preferences in Vim
...pace preferences. As I understand it, the tabstop setting indicates the width of a tab character. The shiftwidth setting specifies how many columns to increment/decrement when using the << and >> commands, whereas the softtabstop setting influences the amount of whitespace to b...
How can I do SELECT UNIQUE with LINQ?
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Hmm... that didn't achieve an alphabetic sort - for some reason... I switched ascending and descending and got the same result. Is the distinct statement affecting it? maybe it needs to be orderedby after that ?
– ba...
What is a “Bitmap heap scan” in a query plan?
... (hence the so-called recheck cond you see in query plans).
Note, as an aside, how clustering/row order affects the associated costs with either method. If rows are all over the place in a random order, a bitmap index will be cheaper. (And, in fact, if they're really all over the place, a seq scan ...
Why does [5,6,8,7][1,2] = 8 in JavaScript?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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SQL set values of one column equal to values of another column in the same table
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Moderator Note - Please do not roll back valid updates to your post.
– Bhargav Rao♦
Jul 16 '19 at 1:03
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Do I really have a car in my garage? [duplicate]
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For simplicity's sake, I would override the ToString() methods in each class and return the concrete type as a string then use a switch() to decide what to do with each item.
– Captain Kenpachi
Jul 23 '14 at 7:38
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