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How are strings passed in .NET?
...ine(strMain); // What gets printed?
}
There are three things you need to know to understand what happens here:
Strings are reference types in C#.
They are also immutable, so any time you do something that looks like you're changing the string, you aren't. A completely new string gets created, the ...
Why does !{}[true] evaluate to true in JavaScript?
... @Cruncher If a is undefined, and b is undefined, how can we possibly know that a != b? Particularly when the only known characteristic of the two variables is exactly the same.
– LJ2
Oct 31 '13 at 18:15
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The request was aborted: Could not create SSL/TLS secure channel
...// Use SecurityProtocolType.Ssl3 if needed for compatibility reasons
And now, it works perfectly.
ADDENDUM
As mentioned by Robin French; if you are getting this problem while configuring PayPal, please note that they won't support SSL3 starting by December, 3rd 2018. You'll need to use TLS. He...
ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
...ill need to update the data in the child table (instead of deleting them).
Now, we can utilize Left Join to find all those rows in the child table, which does not have matching values in the parent table. Following query would be helpful to fetch those non-matching rows:
SELECT child_table.*
FROM c...
Can I disable autolayout for a specific subview at runtime?
... Thanks, man. I'm in my second day struggling with this issue and now it works!
– apostolov
Jan 21 '16 at 16:00
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Incrementing a date in JavaScript
...t anything they wanted to in Date.parse. The new 5th edition specification now has a minimum format that must be accepted, but I wouldn't count on that yet.
– T.J. Crowder
Sep 9 '10 at 8:18
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How are virtual functions and vtable implemented?
We all know what virtual functions are in C++, but how are they implemented at a deep level?
12 Answers
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Get first day of week in SQL Server
... weeks have passed since Monday, January 1, 1900? Let's call that [n]. Ok, now add [n] weeks to Monday, January 1, 1900. You should not be surprised that this ends up being a Monday. DATEADD has no idea that you want to add weeks but only until you get to a Sunday, it's just adding 7 days, then addi...
How can I use a carriage return in a HTML tooltip?
..., and I'd like (without having to resort to a whizz-bang jQuery plugin, I know there are many!) to use carriage returns to format the tooltip.
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Insert into … values ( SELECT … FROM … )
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The documentation does list this (now?): this syntax is INSERT INTO ... VALUES ([expr], [expr], ...) and one of the paths in [expr] is {{NOT} EXISTS} ([select-stmt]) - note that the paranthesis around the select statement are required ({} meaning optional)
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