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How do I remove an item from a stl vector with a certain value?
...n for stl vector, and noticed there was no method on the vector class that allowed the removal of an element with a certain value. This seems like a common operation, and it seems odd that there's no built in way to do this.
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How do I run a Ruby file in a Rails environment?
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#!/usr/bin/env /Users/me/rails_project/script/rails runner
Product.all.each { |p| p.price *= 2 ; p.save! }
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Generate JSON string from NSDictionary in iOS
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Apple added a JSON parser and serializer in iOS 5.0 and Mac OS X 10.7. See NSJSONSerialization.
To generate a JSON string from a NSDictionary or NSArray, you do not need to import any third party framework anymore.
Here is how to do it:
NSError *error;
NSData *jsonData = [NSJSONSeriali...
How to unzip a file using the command line? [closed]
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it is weird,m jar actually solves the problem partially, cause it is able to list the files inside the archive and extract specified files, however, it is not possible to extract all the files at the same time... pretty weird
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A Regex that will never be matched by anything
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This is actually quite simple, although it depends on the implementation / flags*:
$a
Will match a character a after the end of the string. Good luck.
WARNING:
This expression is expensive -- it will scan the entire line, find the en...
StringIO in Python3
... of the question and is included only as something to consider when generically addressing the missing StringIO module. For a more direct solution the message TypeError: Can't convert 'bytes' object to str implicitly, see this answer.
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Unsubscribe anonymous method in C#
...ered Oct 8 '08 at 15:33
Jacob KrallJacob Krall
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How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he
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tshepang
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answered Nov 15 '10 at 11:27
Nathan Fellm...
@ variables in Ruby on Rails
...cope (current block)
@title is an instance variable - and is available to all methods within the class.
You can read more here:
http://strugglingwithruby.blogspot.dk/2010/03/variables.html
In Ruby on Rails - declaring your variables in your controller as instance variables (@title) makes them ava...
Remove all special characters, punctuation and spaces from string
I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers.
16 A...