One point worth making is that Python lambdas are artificially restricted: the body of a Python lambda may only be a single expression, not a sequence of statements. This restriction is for ideological reasons (the BDFL does not *want* you to do that) not for technical reasons. Lisp and Algol 68 were doing lambda expressions in the 60s. As well as function (x, y) { ... }, modern Javascript has (x, y) => ... with subtly different semantics. On Thu, 16 May 2019 at 01:03, Hilaire <hilaire@drgeo.eu> wrote:
Hi,
We, Smalltalkers, use bloc of code as easily as we breathe air.
I am writing an article on Smalltalk programming for a French mathematics teachers magazine.
To illustrate the simplicity of Smalltalk, I would like to compare how the bloc of code 'f' and 'df' below will be implemented in Javascript and Python:
f := [ :x | x cos + x ]. df := [ :x | (f value: x + 1e-8) - (f value: x) * 1e8].
Here f is a way to implement a function and df its derivate.
Do some of you knows how it will be written in Javascript and Python with their own ad-hoc anonymous function?
Thanks
Hilaire
-- Dr. Geo http://drgeo.eu