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If strings are immutable in .NET, then why does Substring take O(n) time?
Given that strings are immutable in .NET, I'm wondering why they have been designed such that string.Substring() takes O( substring.Length ) time, instead of O(1) ?
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Why does Node.js' fs.readFile() return a buffer instead of string?
...ren't always text
Even if you as the programmer know it: Node has no idea what's in the file you're trying to read. It could be a text file, but it could just as well be a ZIP archive or a JPG image — Node doesn't know.
Because reading text files is tricky
Even if Node knew it were to read a te...
Do scala constructor parameters default to private val?
...rely a constructor parameter. If this variable is not used anywhere except the constructor, it remains there. No field is generated. Otherwise private val bar field is created and value of bar parameter is assigned to it. No getter is created.
private val bar: Int
Such declaration of parameter wil...
How to import load a .sql or .csv file into SQLite?
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To import from an SQL file use the following:
sqlite> .read <filename>
To import from a CSV file you will need to specify the file type and destination table:
sqlite> .mode csv <table>
sqlite> .import <filename> <table>...
Rebase a single Git commit
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What is the practical difference between this solution and the one by CharlesB?
– Lii
Oct 4 '17 at 14:21
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There is already an open DataReader associated with this Command which must be closed first
I have this query and I get the error in this function:
18 Answers
18
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ASP.NET MVC: Is Controller created for every request?
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@RobertKoritnik & Bala R, I have a question please. What happens for the objects created like Student or List<Student> after the action method has served it or them to the view? Do they get disposed? And what happens for these objects when a new request comes?
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.NET Format a string with fixed spaces
Does the .NET String.Format method allow placement of a string at a fixed position within a fixed length string.
10 Answers...
Formatting floats without trailing zeros
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I'm sure the precision issue of Decimal.normalize() can be adjusted to what is needed using context settings, but considering the already slow speed and not needing ridiculous precision and the fact that I'd still be converting from a float and losing precision anyway, I didn't think it was wort...
Example JavaScript code to parse CSV data
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You can use the CSVToArray() function mentioned in this blog entry.
<script type="text/javascript">
// ref: http://stackoverflow.com/a/1293163/2343
// This will parse a delimited string into an array of
// arrays. The ...