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What is the effect of extern “C” in C++?
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@Anne, no, I think you've been affected by some other error in the source, because what you are describing is wrong. No version of g++ got this wrong, for any target, at any time in the last 17 years at least. The whole point of the first example is that it doesn't matter whethe...
find() with nil when there are no records
...in
user = User.find(10)
rescue ActiveRecord::RecordNotFound
puts "some error msg"
end
If you want to recover from the error in the rescue block (e.g. by setting a placeholder user (null pattern)), you can continue with your code below this block. Otherwise you might just put all your code for ...
Adding a new value to an existing ENUM Type
...ou are using db-migrate (which runs in transaction), then you might get an error: ERROR: ALTER TYPE ... ADD cannot run inside a transaction block The solution is mentioned here (by Hubbitus): stackoverflow.com/a/41696273/1161370
– Mahesh
Oct 26 '17 at 19:24
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How do I configure git to ignore some files locally?
...l then.
– tollmanz
Mar 30 '13 at 16:05
30
I did not need to run 'git update-index ...' for the ch...
Test whether string is a valid integer
...q "$1" ] 2>/dev/null
then
echo "$1 is an integer !!"
else
echo "ERROR: first parameter must be an integer."
echo $USAGE
exit 1
fi
This approach also accounts for negative numbers, which some of the other solutions will have a faulty negative result, and it will allow a prefix of...
Gem::LoadError for mysql2 gem, but it's already in Gemfile
This error occurred while loading the following files:
14 Answers
14
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form serialize javascript (no framework)
...ee, googlecode does not work without javascript. It simply spits That's an error
– user1040495
Apr 17 '17 at 14:35
3
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Safely turning a JSON string into an object
...SON.parse, the program MAY continue "successfully" but you'll still see an error thrown in the console with the dreaded "Error: unexpected token 'x'".
var data;
try {
data = JSON.parse(jqxhr.responseText);
} catch (_error) {}
data || (data = {
message: 'Server error, please retry'
});
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getActivity() returns null in Fragment function
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answered Aug 6 '13 at 11:05
Pawan MaheshwariPawan Maheshwari
13.6k11 gold badge4343 silver badges4747 bronze badges
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Prevent BODY from scrolling when a modal is opened
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answered Mar 2 '12 at 19:05
charlietflcharlietfl
157k1313 gold badges104104 silver badges137137 bronze badges
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