In the code below, from a blog post by Alias, I noticed the use of the double exclamation mark !!. I was wondering what it meant and where I could go in the future to find explanations for Perl syntax
What is the best way to convert a std::string to bool?I am calling a function that returns either \"0\" or \"1\", and I need a clean solution fo开发者_StackOverflow社区r turning this into a boolean va
H开发者_开发知识库ow to determine whether a variable is a decimal and it is less than 0.01 in PHP?
named_scope :incomplete?, lambda { |user_id, todo_id| { :select => 1, :conditions => [ \"#{user_id} not in (select user_todos.user_id from user_todos) and
I have a business requirement to enforce a check box on a HTML form to be marked as true before allowing submission of the form.
OK, I\'m a little confused. It\'s probably just a triviality. I\'ve got a function which looks something like this:
I get a compiler error when trying to synthesize a bool array like this: // .h #import <UIKit/UIKit.h>
when contructing a http form parameter for a Boolean, what value ca be used to represent true? That is, ruby on rails database开发者_C百科 field set to BOOLEAN for a mysql database.A value of 1 will
In C++, I\'m wondering why the bool type is 8 bits long (on my system), where only one bit is enough to hold the boolean value ?
What would be a valid regex for a MVC route constraint passing a bool?For example, I have the below route:
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