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Value cannot be null. Parameter name: source
...ith Linqpad. Thanks for this, I could have wasted way more time. .Net Core 3.1/EF Core 3.1 here.
– Sunday
May 29 at 13:12
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Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...tegers in python 3.
>>> import math
>>> type(math.floor(3.1))
<class 'int'>
>>> type(math.ceil(3.1))
<class 'int'>
You can find more information in PEP 3141.
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What is the best Java library to use for HTTP POST, GET etc.? [closed]
...res:
Standards based, pure Java, implementation of HTTP versions 1.0
and 1.1
Full implementation of all HTTP methods (GET, POST, PUT, DELETE,
HEAD, OPTIONS, and TRACE) in an
extensible OO framework.
Supports encryption with HTTPS (HTTP over SSL) protocol.
Granular non-standards configuration and...
SQL JOIN and different types of JOINs
...nt but the table must join with itself.
For more information:
Examples:
1.1: INNER-JOIN: Equi-join implementation
SELECT *
FROM Table1 A
INNER JOIN Table2 B ON A.<Primary-Key> =B.<Foreign-Key>;
1.2: INNER-JOIN: Natural-JOIN implementation
Select A.*, B.Col1, B.Col2 --B...
C# catch a stack overflow exception
... at least a couple of reasons. 1) Is that it could be caught, kind of, in 1.1 and hence had a purpose. 2) It can still be caught if you are hosting the CLR so it's still a valid exception type
– JaredPar
Oct 27 '09 at 14:45
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How do I print a double value with full precision using cout?
...g base 2 representation and base 2 can't represent something as trivial as 1.1 exactly. The only way to get the full-full precision of the actual double (with NO ROUND OFF ERROR) is to print out the binary bits (or hex nybbles).
One way of doing that is using a union to type-pun the double to a int...
C# - What does the Assert() method do? Is it still useful?
.../ Retry / Ignore is classic! Was it assertions that used to cause Windows 3.1 to display this all the time?
– devlord
Oct 2 '08 at 17:50
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How do I associate a Vagrant project directory with an existing VirtualBox VM?
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WARNING: The solution below works for Vagrant 1.0.x but not Vagrant 1.1+.
Vagrant uses the ".vagrant" file in the same directory as your "Vagrantfile" to track the UUID of your VM. This file will not exist if a VM does not exist. The format of the file is JSON. It looks like this if a single...
How do I wrap text in a UITableViewCell without a custom cell
...plicate this, but only if I use iPhone OS 3.0 in the simulator. When I use 3.1+, the detailTextLabel's resizing matches that of sizeWithFont just fine. So Tim's method works really well - just for 3.1+ (likely due to a bug/misfeature in the 3.0 default cell rendering). For the record, I'm using a ve...
python: how to identify if a variable is an array or a scalar
....Sequence --> collections.abc.Sequence may be required in Python 3.9 or 3.10.
– Bob Stein
Aug 19 at 11:15
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