Tangentially related: one of my favourite things about JavaScript is that it has so many different ways for the computer to “say no” (in the sense of “computer

Tangentially related: one of my favourite things about JavaScript is that it has so many different ways for the computer to “say no” (in the sense of “computer says no”): false, null, undefined, NaN, boolean coercion of 0/“”, throwing errors, ... While it’s common to see groaning about double-equal vs triple-equal comparison and eye-rolling directed at absurdly large tables like in https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Equality_comparisons_and_sameness#comparing_equality_methods https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guid... but I think it’s genuinely great that we have the ability to distinguish between concepts like “explicitly not present” and “absent”.