I have an item ActiveRecords and开发者_如何学运维 I am trying to set a default value (\"Test item\") for each of them using a block.
Given the following method that takes one argument: def foo(arg); p arg; end I can call it with an empty array:
Recently I was having a discussion with a friend about Ruby\'s Proc. You can call a Proc in one of several ways. One way is to invoke Proc.call:
Given a simple tcl proc like proc foo {a b} {puts \"$a $b\"} What tcl command can I use to print out the procedure foo ... that is I want the text of the proc back ...
开发者_高级运维Are there any \"simple\" explanations of what procs and lambdas are in Ruby?Lambdas (which exist in other languages as well) are like ad hoc functions, created only for a simple use rat
加载中,请稍侯......