JavaScript compactMap

type Primitive = boolean | number | string | symbol | bigint | null | undefined
type Unwrap<T> = T extends { [K in keyof T]: infer U } ? U : never

export function arrayCompact<T extends readonly any[], U extends Primitive>(array: T, diff: U) {
  return array.filter(item => item !== diff) as Exclude<Unwrap<T>, U>[]
}