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Transform DateTime into simple Date in Ruby on Rails
... century
%Z - Time zone name
%% - Literal ``%'' character
t = Time.now
t.strftime("Printed on %m/%d/%Y") #=> "Printed on 04/09/2003"
t.strftime("at %I:%M%p") #=> "at 08:56AM"
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Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags
...propriate. I think that makes the difference in hibernate, though I don't know why.
– fool4jesus
Dec 6 '12 at 19:38
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Count, size, length…too many choices in Ruby?
... advise using length (or its alias size) rather than count if you want to know how many elements there are altogether.
Regarding ActiveRecord, on the other hand, there are important differences. check out this post:
Counting ActiveRecord associations: count, size or length?
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Can I find out the return value before returning while debugging in Intellij?
...ere is a much better way. See answer from Birchlabs for details. It should now be the accepted answer.
– Mikezx6r
Nov 4 '19 at 13:15
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Coloring white space in git-diff's output
...<file>
or
git diff --ws-error-highlight=all <file>
I don't know of a way to permanently turn this on and store this in config aside from using an alias:
git config alias.df 'diff --ws-error-highlight=all'
Now you can use:
git df <file>
To see the changes in red.
Note that w...
What exactly is Type Coercion in Javascript?
...typed languages are the scourge of the programming world. However, if you know what you are doing, it can make for shorter, more flexible code.
– Crayon Violent
Nov 11 '13 at 21:06
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How can I default a parameter to Guid.Empty in C#?
...defined as static readonly not as const). Compiler can only have compiler-known values as method parameters default values (not runtime-only-known).
The root cause is that you cannot have a const of any struct, unlike enum for example. If you try it, it will not compile.
The reason once more is th...
How can I make a ComboBox non-editable in .NET?
...itable, set the DropDownStyle property to "DropDownList". The ComboBox is now essentially select-only for the user. You can do this in the Visual Studio designer, or in C# like this:
stateComboBox.DropDownStyle = ComboBoxStyle.DropDownList;
Link to the documentation for the ComboBox DropDownStyl...
C char array initialization
...har buf[10];
declares and defines the array. The array identifier buf is now an address in memory, and you cannot change where buf points through assignment. So
buf = // anything on RHS
is illegal. Your second and third code fragments are illegal for this reason.
To initialize an array, y...
CSS to set A4 paper size
...ed under the @page rule causes the same issue).
So not only the content is now too long for the page (by about 2cm), but also the page padding will be slightly more than the initial 2cm and so on (it seems to render the contents under width: auto to the width of ~196mm and then scale the whole conte...