From TFA (note: I didn't test it)

    Uncaught RangeError: Maximum call stack size exceeded

    Dana smirks. “Well, yeah. JavaScript is an eager language. Can’t use the Y combinator.”

    You saw this coming. You paste your code into Skoobert [1].

    “Skoobert?” Dana asks.

    “JavaScript but lazy,” you explain. “And without the bloat.”

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[1] https://joshmoody24.github.io/skoobert/?example=language-ove...