removeOrThrow

removeOrThrow(map, key)

Removes the entry with the specified key from map, throwing an error if the key doesn't exist.

data-first

removeOrThrow(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    "a",
); // Map(1) { "b" => 2 }

removeOrThrow(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    "c",
); // throws FnError

data-last

pipe(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    removeOrThrow("a"),
); // Map(1) { "b" => 2 }

pipe(
    new Map([
        ["a", 1],
        ["b", 2],
    ]),
    removeOrThrow("c"),
); // throws FnError