vadimyen

type Operation = (a: number, b: number) => number
type OperationDenotation = keyof typeof operationMap

const operationMap = {
    "+": (a, b) => a + b,
    "-": (a, b) => b - a,
    "*": (a, b) => a * b,
    "/": (a, b) => b / a
} satisfies Record<string, Operation>