Further reading

• WebAssembly on MDN: https://developer.mozilla.org/en-US/docs/WebAssembly
• WasmFiddle: https://wasdk.github.io/WasmFiddle
• S-expressions on Wikipedia: https://en.wikipedia.org/wiki/S-expression
• Examples of Trees: http://interactivepython.org/runestone/static/pythonds/Trees/ExamplesofTrees.html