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How do I check if an element is really visible with JavaScript? [duplicate]
... elementFromPoint() says that element is completely overlapped by another (and you treat it as invisible) but user can see it.
– Konstantin Smolyanin
Aug 27 '13 at 20:02
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Change a column type from Date to DateTime during ROR migration
...f you're wondering why a single change method isn't used instead of the up and down methods, it's because the change method doesn't support the change_column migration definition.
– Dennis
Feb 25 '14 at 21:35
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How does lucene index documents?
...it is processed through the same analyzer that was used to build the index and then used to look up the matching term(s) in the index. That provides a list of documents that match the query.
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How do I convert a String object into a Hash object?
...en its string representation is "{:a=>#<Object:0x7f66b65cf4d0>}", and I can't use eval to turn it back into a hash because #<Object:0x7f66b65cf4d0> isn't valid Ruby syntax.
However, if all that's in the hash is strings, symbols, numbers, and arrays, it should work, because those have...
Double exclamation points? [duplicate]
So I was debuging some code and ran across this:
3 Answers
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Reuse Cucumber steps
...de in like so: steps %Q{Given I am logged in}
– BrendanDean
Aug 9 '11 at 18:42
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emacs, unsplit a particular window split
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I've been using Emacs for 30 years and never noticed this feature!
– Blisterpeanuts
Jun 10 at 12:59
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Java: How to set Precision for double value? [duplicate]
I was working with numbers recently and I had a situation where I want to set the precision of a double value say to 6 digits or 4 digits, depending on the value stored in the database.
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How do you render primitives as wireframes in OpenGL?
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glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
to switch on,
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
to go back to normal.
Note that things like texture-mapping and lighting will still be applied to the wireframe lines if they're enabled, w...
Clustered vs Non-Clustered
My lower level knowledge of SQL (Server 2008) is limited, and is now being challanged by our DBAs. Let me explain (I have mentioned obvious statements in the hope that I am right, but if you see something wrong, please tell me) the scenario:
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