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What is the difference between HashSet and List?
...t; i++)
Console.WriteLine(hashSet1[i]);
hashSet1[i] would produce an error:
Cannot apply indexing with [] to an expression of type
'System.Collections.Generic.HashSet'
You can use foreach statement:
foreach (var item in hashSet1)
Console.WriteLine(item);
You can not add duplic...
xUnit.net: Global setup + teardown?
...e in my opinion, as forgetting to decorate a single test class can lead to errors that are difficult to track down. It would be nice if xUnit created a way to truly global setup and teardown.
– Zodman
Feb 24 at 23:23
...
Swift - Convert to absolute value
... understand why abs(Int8.min) can't work and therefore creates an overflow error.
– Imanou Petit
May 16 '18 at 11:47
...
Detecting Unsaved Changes
...chooses the cancel option, the doPostBack function will throw a JavaScript error. I had to manually put a try-catch around the .submit call within doPostBack to suppress it.
On some pages, a user could perform an action that performs a postback to the same page, but isn't a save. This results in a...
Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
..., and a different syntax for each command all make shell scripts invisibly error prone
– jsbueno
Apr 17 '11 at 17:05
7
...
Suppress warning “Category is implementing a method which will also be implemented by its primary cl
... you'll notice that your test project still builds with "treat warnings as errors" turned on because it's a linker warning.
– Ben Baron
Mar 9 '13 at 6:06
12
...
How was the first compiler written?
...mes. So yeah, you can hand-assemble just fine. It's slow and painful and error-prone (which is why we automated things) but it's possible.
– JUST MY correct OPINION
Apr 22 '10 at 11:09
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What should every developer know about databases? [closed]
...it in both places. That way you're protected against bugs as well as user error. There's no reason to make every column nullable, or to allow values outside the range 1-12 to be inserted into a Month column. Complex business rules are, of course, another story.
– Aaronaught
...
How to validate an Email in PHP?
... ask again
and again for same data, use some logic to correct some basic error in data.
Before validation of Email: First you have to remove all illegal characters from email.
//This will Remove all illegal characters from email
$email = filter_var($email, FILTER_SANITIZE_EMAIL);
after that v...
Is there a difference between “throw” and “throw ex”?
...
Yes, there is a difference;
throw ex resets the stack trace (so your errors would appear to originate from HandleException)
throw doesn't - the original offender would be preserved.
static void Main(string[] args)
{
try
{
Method2();
}
catch (Exception ex)
{
...