<p><pre><code> Variables need not be explicitly declared. Move will
declare a newfound variable in the scope which it first
was used.
</code></pre>
How does this interact with lexical scope? For example, how would the go-to counter example (in JavaScript below) be expressed in Move?<p><pre><code> function makeCounter() {
var x = 0;
return function() {
return x++;
};
}
</code></pre>
Does Move not require declarations because it has implicit declarations whenever there's a usage of any variable? (In which case the above example couldn't be expressed without some kind of circumlocution—again, like in Python.) Or are variables always looked up in the outermost scope, so you can't have a variable whose name is shared by another variable in an enclosing scope?<p><pre><code> No commas required to terminate expressions. Move will
determine when a comma is needed so you don't have to
(and the code gets more readable).
</code></pre>
Given that all the code has commas in the same places as in JavaScript, I'm going to assume s/comma/semicolon, and s/expression/statement, to be pedantic.