I think this is basically assigning values to the window object, similar to upda... | Hacker News

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65 85 days ago | parent | context | favorite | on: JavaScript Temporal is coming

I think this is basically assigning values to the window object, similar to updating values in any object.

e.g.

    const a = { b: 1 }
    console.log(a.b = 2); // logs 2

recursive 85 days ago [–]

Only if you haven't already declared the variable. e.g.

    let x;
    console.log(x = 'hello');

My point is that the `x = 'hello'` part is an assignment, and an expression, and has the exact same semantics regardless of whether you use that expression as a statement. So, assignments would seem to be expressions.

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