For my inaugural TIL series…
const ALPHA = 0.5; let deltaH = 0.02; let x = ALPHA * deltaH ;
const α = 0.5; let ΔH = 0.02; let x = α * ΔH;
Better reading elsewhere (here).
Eggplants and peaches. Open to debate, not here though.
Anyway, as of ECMAScript 5, you can use any character from Unicode 6.1. ECMAScript is now on v12 so I am sure it has been extended.