I made an interactive command shell which is operating by Lua interpreter. User input some comm开发者_C百科and, shell calls something like lua_dostring to execute it. I want to allow users to define t
How would I create three empty hashes with a single line o开发者_如何转开发f code? I know that a = b = c = Hash.new won\'t work, since that\'ll create three references to the same Hash object.
I recently stumbled across replace() and \"[<-\".They seem to have similar functionality, for example with \"[<-\" I can do something like this:
I need to assign one of two variables to a third variable, using the value of the second variable if the first is (bool)false or undefined.
I have a Codeigniter vi开发者_运维问答ew which does some processing and creates some variables which I need in my controller.
I need to assign n people to m courses, where each person specified their first and second preference and each course has a maximum number of persons attending. Each person can only attend one course.
I have a list of objects and I want to remove all objects that are empty except for one, using filter and a lambda expression.
$a = $b = 0; In the above code, are both $a and $b assigned the value of 0, or is $a just referencing 开发者_Go百科$b?With raw types this is a copy.
Which is the correct syntax? DECLARE @TotalRows INT SET @TotalRows = (SELECT COUNT(*) FROM MyTable WHERE MyID = Value)
This question already has an answer here: Closed 11 years ago. Possible Duplicate: Tuple parameter declaration and assignment oddity
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