Given a set of lexical variables, is it feasible to rebind a subset of them depending on circumstances at runtime. My first idea was to use #'set some ...
Given a set of lexical variables, is it feasible to rebind a subset of them depending on circumstances at runtime. My first idea was to use #'set some ...
I ran into what seemed like very strange behavior from Dart today. There must be something wrong with how I am understanding local variables and lexic ...
https://tc39.es/ecma262/multipage/ecmascript-language-statements-and-declarations.html#sec-block-runtime-semantics-evaluation 14.2.2 Runtime Seman ...
I am working on a compiler in TypeScript and thinking a lot about lexical scope. In particular I'm wondering about how you handle the situation where ...
In Common Lisp this sort of thing works fine In elisp this errors saying x is not defined as if the lexical closure did not happen. This is somethi ...
I have this code: This happens because i is always a reference to the outer i inside the makeArmy() function. If we adjust the code to be: The ...
I am using SBCL, Emacs, and Slime. Hence, I can do: CL-USER> (defvar example #'(lambda (x) (* x 20))) EXAMPLE CL-USER> (funcall example 10) 20 ...
Why do bar and baz behave differently? When bar is called both the value of a printed and the value of a in the global scope are the same, but when ba ...
I keep hearing that arrow functions inherit the value of this from their Lexical Environment. Consider this example: let para = document.get ...
I have two Python files: b.py: def buzz(): foobar = Foobar() c.py: from b import buzz class Foobar: pass buzz() Running python c.py r ...
[NOTE: I asked this question based on an older version of Rakudo. As explained in the accepted answer, the confusing output was the result of Rakudo b ...
I still do not understand how a dynamic interpreter differ from a lexical one. I am working on scheme and i find it very difficult to know how a simp ...
I have the following Perl script. The following is returned. I do not understand why the following line has changed apple to peach in the @fruit ...
I'm attempting to refactor a script by splitting it into multiple functions, having a main function and "help functions". Here I stumbled upon a probl ...
My professor has given us a question after talking about the difference between lexical and dynamic scope. He presented us a simple evaluator (of a fi ...
I was reading K&R book and came across a paragraph which is out of understanding for me. there are two kinds of scope to consider: first, the ...
I read a relevant post on binding, however still have questions. Here are the following examples I found. Can someone tell me if the conclusions are ...
I have been reading Hadley Wickham's Advanced R in order to gain a better understanding of the mechanism or R and how it works behind the scene. I hav ...
I like the general style of using closures to create objects with private properties. What I'm unsure of is whether it's more efficient to create the ...
How do I get the modify_attr() function (below) not to capture/update the value of b in the following for loop? (simplified version, occurring within ...