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Comments in Android Layout xml
...g and will give following error
Element type "TextView" must be followed by either attribute specifications, ">" or "/>".
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How can I undo a `git commit` locally and on a remote after `git push`
I have performed git commit followed by a git push . How can I revert that change on both local and remote repositories?
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AngularJS passing data to $http.get request
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@naXa GET should be url params only by convention, so many frameworks will not allow it to enforce best practice, even if technically it could work and could make sense.
– Christophe Roussy
May 29 '17 at 8:28
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How to check all checkboxes using jQuery?
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You can make $("#checkedAll").change function shorter by changing it to: var val = this.checked; $(".checkSingle").each( function() { this.checked=val; });
– Gellie Ann
Feb 21 at 4:07
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Assign null to a SqlParameter
... between both types, otherwise you get an exception.
So you could fix it by casting one of both to System.Object:
planIndexParameter.Value = (AgeItem.AgeIndex== null) ? DBNull.Value : (object) AgeItem.AgeIndex;
But since the result is not really pretty and you always have to remember this casti...
What's the difference between lapply and do.call?
I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ?
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Undo changes in entity framework entities
...ys the same time 50ms+0*n= 50ms. O(n) means the performance is influenced by the number of objects... performance is maybe 2ms+0.5ms*n... so bellow 96 objects it would be faster but time would increase linearly with the amount of data.
– Guish
Jul 3 '14 at 14:...
How do I copy a hash in Ruby?
I'll admit that I'm a bit of a ruby newbie (writing rake scripts, now). In most languages, copy constructors are easy to find. Half an hour of searching didn't find it in ruby. I want to create a copy of the hash so that I can modify it without affecting the original instance.
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How to replace a hash key with another key
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I often don't like "smart" ruby code because it takes some time to tell what it is really doing. Your solution is in other hand simple and descriptive.
– Lucas
Nov 13 '14 at 18:55
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Find and replace strings in vim on multiple lines
... and replace with “bar”.
First hit [Esc] key
Type : (colon) followed by %s/foo/bar/ and hit [Enter] key
:%s/foo/bar/
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