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Check if table exists without using “select from”
...get it what happened here. I've checked the answers, because I am doing it now, and it is true that Sergio Tulentsevs answer was earlier (1 mins) and offered 3 solutions, but this one is the most effective. Why should I select anything more or anything else what I want? I need a "boolean" 1/0 in thi...
What does @synchronized() do as a singleton method in objective C?
I just created a singleton method, and I would like to know what the function @synchronized() does, as I use it frequently, but do not know the meaning.
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Determine version of Entity Framework I am using?
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Now there are three versions and EFV5 is associated with .NET 4.5 and as of now, EFv6 is under construction
– Farax
Sep 19 '13 at 1:32
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How to use JavaScript source maps (.map files)?
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The .map files are for js and css (and now ts too) files that have been minified. They are called SourceMaps. When you minify a file, like the angular.js file, it takes thousands of lines of pretty code and turns it into only a few lines of ugly code. Hopefully, w...
jQuery hasClass() - check for more than one class
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Just now noticed that I have 4 id="hello" elements there. Fixed version in order to make validators happy: jsbin.com/uqoku/2/edit
– Matchu
Feb 6 '10 at 22:38
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Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
...why we can call this method by its class name (like Arrays.asList(T...a) )
Now here is the twist, please note that this method doesn't create new ArrayList object, it just returns a List reference to existing Array object(so now after using asList method, two references to existing Array object gets...
How can I prevent the “You have mixed tabs and spaces. Fix this?” message?
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This needs to be updated for VS2017 now. As it turns out, this is its own extension that can be disabled now
– Joe Phillips
Mar 7 '17 at 16:53
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Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
I have been googling for about 90 minutes now and still don't have an answer to this. Where do I set default_url_options ? I've already set it for config.action_mailer.default_url_options to solve this same bug elsewhere, but now I'm getting this error when trying to use a URL helper inside an ...
Why does one hot encoding improve machine learning performance?
... the constraint w×x + b > 0, or equivalently w×x < b.
The problem now is that the weight w cannot encode a three-way choice. The three possible values of w×x are 0, w and 2×w. Either these three all lead to the same decision (they're all < b or ≥b) or "UK" and "French" lead to the sa...
Why are C# 3.0 object initializer constructor parentheses optional?
... in this area. (The last thing we want to do is make a cheap, easy feature now that makes it much harder to implement a more compelling feature in the future.)
the feature adds no new ambiguities to the lexical, grammatical or semantic analysis of the language. It poses no problems for the sort of "...