On Fri, Dec 16, 2016 at 11:36 AM, Erik <pyt...@lucidity.plus.com> wrote: > On 12/12/16 23:23, Chris Angelico wrote: >> >> In JavaScript, it's normal to talk about "calling a function as a >> constructor". When you do, there is a 'this' object before you start. > > > No there isn't. There is an implicit binding of a variable called "this" > based on the syntactic sugar of whether you're calling a function as method > on an object or not. > > In "strict" mode, this has been redefined to be "undefined" (i.e., there is > no object) for when you're not - otherwise it will be a binding to the > global "document" object (and in Node.js, I think something else entirely. > It's a mess ...).
I'm talking about when you call a function as a constructor: "new Foo()". Doesn't that have a 'this' object before the function starts? ChrisA -- https://mail.python.org/mailman/listinfo/python-list