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Checking if a list is empty with LINQ
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Or use one line and do return (source==null) ? true : !source.Any(); (If your not throwing an exception)
– Gage
Aug 26 '10 at 15:23
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SQL - find records from one table which don't exist in another
...two tables:
This is the shortest statement, and may be quickest if your phone book is very short:
SELECT *
FROM Call
WHERE phone_number NOT IN (SELECT phone_number FROM Phone_book)
alternatively (thanks to Alterlife)
SELECT *
FROM Call
WHERE NOT EXISTS
(SELECT *
FROM Phone_book
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How can one close HTML tags in Vim quickly?
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I installed xmledit plugin with git clone https://github.com/sukima/xmledit.git ~/.vim/bundle/xmledit. But it only works when editing .xml files. When the file ext is .html or .htm, it doesn't works.
– Chad
Nov 27 '14 at 5:5...
What is a smart pointer and when should I use one?
What is a smart pointer and when should I use one?
14 Answers
14
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How does one make a Zip bomb?
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Citing from the Wikipedia page:
One example of a Zip bomb is the file
45.1.zip which was 45.1 kilobytes of compressed data, containing nine
layers of nested zip files in sets of
10, each bottom layer archive
containing a 1.30 gigabyte file for a
t...
Why is there no logical xor in JavaScript?
...nd of a ^= true to toggle booleans and it fails on some machines such as phones.
– Masadow
Jun 5 '15 at 15:14
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Get a list of all git commits, including the 'lost' ones
...nce between a commit deliberately orphaned by commit --amend or rebase and one accidentally orphaned by working with a detached HEAD, say.
– Cascabel
Jan 24 '11 at 21:22
3
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do..end vs curly braces for blocks in Ruby
...an do..end, so keep that in mind when deciding what you want to use.
P.S: One more example to keep in mind while you develop your preferences.
The following code:
task :rake => pre_rake_task do
something
end
really means:
task(:rake => pre_rake_task){ something }
And this code:
task...
How to get the size of a JavaScript object?
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Anyone who landed here looking for the smallest type for the purposes of false/true, it seems to be undefined/null.
– zupa
Jan 24 '13 at 16:32
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How do I calculate the date in JavaScript three months prior to today?
...us thing. How do you define 1 month? 30 days? Most people will say that one month ago means the same day of the month on the previous month citation needed. But more than half the time, that is 31 days ago, not 30. And if today is the 31st of the month (and it isn't August or Decemeber), that d...