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In .NET, which loop runs faster, 'for' or 'foreach'?
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Patrick Smacchia blogged about this last month, with the following conclusions:
for loops on List are a bit more than 2 times cheaper than foreach
loops on List.
Looping on array is around 2 times cheaper than looping on...
Why doesn't delete set the pointer to NULL?
...pointer to NULL after delete is not part of the standard. If this gets taken care of then many of the crashes due to an invalid pointer would not occur. But having said that I can think of couple of reasons why the standard would have restricted this:
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Grabbing the href attribute of an A element
Trying to find the links on a page.
10 Answers
10
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Referring to a Column Alias in a WHERE Clause
...120)
Normally you can't refer to field aliases in the WHERE clause. (Think of it as the entire SELECT including aliases, is applied after the WHERE clause.)
But, as mentioned in other answers, you can force SQL to treat SELECT to be handled before the WHERE clause. This is usually done with paren...
In Android EditText, how to force writing uppercase?
...nformation. But I need to force user to write in uppercase letters.
Do you know a function to do that?
23 Answers
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Sublime - delete all lines containing specific value
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You can do a regular expression search-and-replace:
Click Find > Replace.
Ensure that the Regular Expression button is pressed.
For the Find What field, put:
^.*No records to send and/or not connected.*\n
Leave the Replace With field empty.
Click Replace All
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SQL Server, convert a named instance to default instance?
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As far as I know, no. One reason is the folder structure on the hard drive; they will have a name like MSSQL10.[instancename]
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Quick unix command to display specific lines in the middle of a file?
...0 ... Or 10 lines after: grep -A 10 ...
– Boy Baukema
May 21 '12 at 11:14
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How do I remove javascript validation from my eclipse project?
...ry has errors in it and is not letting me compile the project. Does anyone know how to turn javascript validation off?
8 A...
How to create a database from shell command?
I'm looking for something like createdb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints?
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