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Can I multiply strings in Java to repeat sequences? [duplicate]
...es is the following one-liner:
new String(new char[generation]).replace("\0", "-")
Replace generation with number of repetitions, and the "-" with the string (or char) you want repeated.
All this does is create an empty string containing n number of 0x00 characters, and the built-in String#repla...
Ruby max integer
...ts (integers small enough to store in a single machine word), you can call 0.size to get the number of bytes. I would guess it should be 4 on 32-bit builds, but I can't test that right now. Also, the largest Fixnum is apparently 2**30 - 1 (or 2**62 - 1), because one bit is used to mark it as an inte...
How to calculate date difference in JavaScript?
...icktoofay
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41
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Bootstrap full-width text-input within inline-form
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102
The bootstrap docs says about this:
Requires custom widths Inputs, selects, and textareas a...
MongoDB: How to query for records where field is null or not set?
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edited Aug 31 '16 at 0:31
answered May 14 '12 at 21:55
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How to write a Ruby switch statement (case…when) with regex and backreferences?
... groups are always stored in pseudo variables $1 to $9:
case foo
when /^([0-9][0-9])/
print "the month is #{$1}"
else
print "something else"
end
You can also use the $LAST_MATCH_INFO pseudo variable to get at the whole MatchData object. This can be useful when using named captures:
case ...
jquery sortable placeholder height problem
For some reason the placeholder for my sortable items is about 10px. All my sortable items have different heights. How can I change the height of each placeholder to match the item being moved?
...
stash@{1} is ambiguous?
I'm trying to get info about my stash, but git is telling me that stash@{0} and stash@{1} are ambiguous. git stash list works fine, and .git/logs/refs/stash seems to have the appropriate content (not that I'm an expert on git internals).
...
Reference alias (calculated in SELECT) in WHERE clause
... - CreditTotal) AS BalanceDue
FROM Invoices
) AS x
WHERE BalanceDue > 0;
Or just repeat the expression:
SELECT (InvoiceTotal - PaymentTotal - CreditTotal) AS BalanceDue
FROM Invoices
WHERE (InvoiceTotal - PaymentTotal - CreditTotal) > 0;
I prefer the latter. If the expression is extre...
Visual Studio or Resharper functionality for placement of using directives
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UPDATE - ReSharper 2016.1: This option is now moved to Code Editing → C# → Code Style → Add 'using' directive to the deepest scope
Have you tried the ReSharper option:
Languages → C# → Formatting Style → Namespace Imports → Add u...