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Why seal a class?
I'd like to hear what is the motivation behind the bulk of sealed classes in the .Net framework. What is the benefit of sealing a class? I cannot fathom how not allowing inheritance can be useful and most likely not the only one fighting these classes.
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iOS: How to get a proper Month name from a number?
...atter *df = [NSDateFormatter new];
// change locale if the standard is not what you want
NSArray *monthNames = [df standaloneMonthSymbols];
NSString *monthName = [monthNames objectAtIndex:(i - 1)];
[df release];
share
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In Rails - is there a rails method to convert newlines to ?
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Yes, rails has simple_format which does exactly what you are looking for, and slightly better since it also adds paragraph tags. See
http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#method-i-simple_format
Example:
simple_format(mystring)
Note th...
How do I convert NSMutableArray to NSArray?
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What does this do that the others don't do?
– Ben Leggiero
Mar 15 '16 at 21:53
add a comment
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What is Common Gateway Interface (CGI)?
...s via standard input and standard output so the program can know where and what to look for.
The main benefit is that you can run ANY executable code from the web, given that both the webserver and the program know how CGI works. That's why you could write web programs in C or Bash with a regular C...
Make the current commit the only (initial) commit in a Git repository?
...wers to questions about git reference syntax is in the git-rev-parse docs. What's happening here is git-commit-tree requires a reference to a tree (a snapshot of the repo), but HEAD is a revision. To find the tree associated with a commit we use the <rev>^{<type>} form.
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How do I view events fired on an element in Chrome DevTools?
I have a customizable form element on a page from a library. I want to see what javascript events are fired when I interact with it because I am trying to find out which event handler to use.
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Why am I getting an OPTIONS request instead of a GET request?
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what i don't understand is why browser is requesting with OPTIONS method just to check the actual request is safe to send. but in what sense ? i mean server can also put restrictions with certain response headers so why this ...
Inline comments for Bash?
...word: something" \
| grep something \
| pipe_comment "reverse sort what is left" \
| sort -r
Or if you prefer, here's the same solution without the helper function, but it's a little messier:
#!/bin/sh
cat input.txt \
| cat - `: filter down to lines that contain the word: ...
How does a hash table work?
...tion could be in the range of 0 to one billion which is a lot higher.
So, what do we do? We use something called modulus calculation, which basically says that if you counted to the number you wanted (i.e. the one billion number) but wanted to stay inside a much smaller range, each time you hit the...