Also see Snap!, a fork of scratch3 (the js-only version, not the squeakvm-in-the-browser versrion from TFA).
https://snap.berkeley.edu/
Snap! is made by folks previously involved in Berkeley Logo, and has a lot of "missing pieces" that make organizing programs easier: lambdas, cc, and binding functions to definitions (aka build-your-own-blocks).
Snap! is made by folks previously involved in Berkeley Logo, and has a lot of "missing pieces" that make organizing programs easier: lambdas, cc, and binding functions to definitions (aka build-your-own-blocks).