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Couldn't connect to server 127.0.0.1:27017
I'm getting the following error:
31 Answers
31
...
In Mongoose, how do I sort by date? (node.js)
...
This one did not work for me. I am getting an error "User.find(...).sort(...).execFind is not a function"
– Sandip Subedi
Nov 25 '16 at 23:24
add ...
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
...
SQL Server principal “dbo” does not exist,
I am getting the following error
11 Answers
11
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How does the “final” keyword in Java work? (I can still modify an object.)
... of the class. Again, if the variable is static then it is a compilation error.
18 Answers
...
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 $USAGE
exit 1
fi
This approach also accounts for negative numbers, which some of the other solutions will have a faulty negative result, and it will allow a prefix of...
find() with nil when there are no records
...in
user = User.find(10)
rescue ActiveRecord::RecordNotFound
puts "some error msg"
end
If you want to recover from the error in the rescue block (e.g. by setting a placeholder user (null pattern)), you can continue with your code below this block. Otherwise you might just put all your code for ...
form serialize javascript (no framework)
...ee, googlecode does not work without javascript. It simply spits That's an error
– user1040495
Apr 17 '17 at 14:35
3
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How to make an AJAX call without jQuery?
... else if (xmlhttp.status == 400) {
alert('There was an error 400');
}
else {
alert('something else other than 200 was returned');
}
}
};
xmlhttp.open("GET", "ajax_info.txt", true);
xmlhttp.send();
}
</script&...
Calling shell functions with xargs
...'echo_var "$@"' _ {}
Also, using return 0 and exit 0 like that masks any error value that might be produced by the command preceding it. Also, if there's no error, it's the default and thus somewhat redundant.
@phobic mentions that the Bash command could be simplified to
bash -c 'echo_var "{}"'
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