This is a demo interpreter of the toy language "Wally" of which I wrote a couple of blog posts.

Type in some (valid) Wally script, or load an example script from the right side of the screen, and press the ESQ key to evaluate the script.

Examples

Load an example (note that your current script will be replaced by this example!):

• ←   expressions
• ←   control flow statements
• ←   functions
• ←   custom objects

For more examples, checkout part 2 of my blog about Wally.

Note that the assert(...) function does not work in this online interpreter!