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Array_merge versus + [duplicate]
...e() has slightly different behavior:
If the input arrays have the same string keys, then the later value for that key will overwrite the previous one. If, however, the arrays contain numeric keys, the later value will not overwrite the original value, but will be appended. Values in the input ar...
Check element CSS display with JavaScript
...cument.getElementById('someIDThatExists').style.display);
will give you a string value.
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How to set session timeout in web.config
...e.
The timeout attribute specifies the number of minutes a session can be idle before it is abandoned. The default value for this attribute is 20.
By assigning a value of 1 to this attribute, you've set the session to be abandoned in 1 minute after its idle.
To test this, create a simple aspx pag...
LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria
Consider the IEnumerable extension methods SingleOrDefault() and FirstOrDefault()
15 Answers
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A transport-level error has occurred when receiving results from the server [closed]
...ction pool of your app; as a result, when you pickup the shared connection string and try to execute it's not able to reach the database. If you are developing Visual Studio, simply close the temporary web server on your task bar.
If it happens in production, resetting your application pool for yo...
Print new output on same line [duplicate]
...a file-like object (stream); defaults to the current sys.stdout.
sep: string inserted between values, default a space.
end: string appended after the last value, default a newline.
You can use the end keyword:
>>> for i in range(1, 11):
... print(i, end='')
...
12345678910...
Identify user in a Bash script called by sudo
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I think $SUDO_USER is valid.
#!/bin/bash
echo $SUDO_USER
whoami
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Is there a performance impact when calling ToList()?
...all files' names immediately into memory, it has a potential risk that the string[] costs a lot of memory, slowing down everything.
What should be done then
It depends. If you(as well as your business logic) gurantees that the file amount in the folder is always small, the code is acceptable. But ...
GroupBy pandas DataFrame and select most common value
I have a data frame with three string columns. I know that the only one value in the 3rd column is valid for every combination of the first two. To clean the data I have to group by data frame by first two columns and select most common value of the third column for each combination.
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multiple tags
...g sure you are using tags semantically and you aren't putting them in invalid places (they're block-level elements, so you can't put them inside an inline element, for example) then you shouldn't worry too much about what the sticklers are saying. It's all to easy to get caught up arguing about tiny...