jslogo - Logo in JavaScript
This is hosted at https://inexorabletash.github.io/jslogo/ for playing with live.
Language Reference - this attempts to implement a subset of UCBLogo defined in in Brian Harvey's Computer Science Logo Style
Logo Examples
to star repeat 5 [ fd 100 rt 144 ] end
star
to square :length repeat 4 [ fd :length rt 90 ] end
repeat 36 [ square 50 rt 10 ]
to randomcolor setcolor pick [ red orange yellow green blue violet ] end
repeat 36 [ randomcolor square random 200 rt 10 ]
window pu repeat 72 [ setlabelheight repcount fd repcount * 2.5 label "Logo bk repcount * 2.5 rt 10 ]
Logo Links
- Logo on Wikipedia
- Other Logo implementations that run in a Web browser:
- The Logo Foundation
- Berkeley Logo (UCBLogo)
- The Logo Tree Project
- Ian Bicking on Logo
- PyLogo
- Introduction to Computer Programming
To Do
- Document deviations from UCB Logo standard
- Make these examples all work: Logo 15-word challenge
- Tail-call optimization
- Make execution async so you can watch the turtle move