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[Power Query] Closures, partial application and cascading parameters
let
addTo = (x) => (y) => x + y,
//make a closure with scope x=5
addToFive = addTo(5),
//becomes addTo(5) => (y) => 5 + y
eight = addToFive(3)
in //becomes addTo(5) => (3) => 5 + 3
eight
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