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Cake day: June 24th, 2023

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  • I was watching the network traffic sent by Twitter the other day, as one does, and apparently whenever you stop scrolling for a few seconds, whatever post is visible on screen at that time gets added to a little pile that then gets “subscribed to” because it generated “engagement”, no click needed.
    This whole insidious recommendation nonsense was probably a subplot in the classic sci-fi novel Don’t Create The Torment Nexus.

    Almost entirely unrelated, but I’ve been playing The Algorithm (part of the Tenet OST, by Ludwig Göransson) on repeat for a bit now. It’s also become my ring tone, and if I can infect at least one other hapless soul with it, I’ll be satisfied.




  • One of my guilty pleasures is to rewrite trivial functions to be statements free.

    Since I’d be too self-conscious to put those in a PR, I keep those mostly to myself.

    For example, here’s an XPath wrapper:

    const $$$ = (q,d=document,x=d.evaluate(q,d),a=[],n=x.iterateNext()) => n ? (a.push(n), $$$(q,d,x,a)) : a;
    

    Which you can use as $$$("//*[contains(@class, 'post-')]//*[text()[contains(.,'fedilink')]]/../../..") to get an array of matching nodes.

    If I was paid to write this, it’d probably look like this instead:

    function queryAllXPath(query, doc = document) {
        const array = [];
        const result = doc.evaluate(query, doc);
        let node= result.iterateNext();
        while (node) {
            array.push(node);
            n = result.iterateNext();
        }
        return array;
    }
    

    Seriously boring stuff.

    Anyway, since var/let/const are statements, I have no choice but to use optional parameters instead, and since loops are statements as well, recursion saves the day.

    Would my quality of life improve if the lambda body could be written as => if n then a.push(n), $$$(q,d,x,a) else a ? Obviously, yes.