FlateError is exported as an interface rather than a class #290

FlateError is exported as an interface rather than a class, which means that it's not possible to detect it via instanceof FlateError.

import { unzipSync, FlateError } from 'fflate'

try {
  unzipSync(...)
} catch (error) {
  if (error instanceof FlateError) {
    ... report the error.code ...
  } else {
    throw error
  }
}

Exception during run: SyntaxError: The requested module 'fflate' does not provide an export named 'FlateError'

Hence, it's not possible to determine whether it threw because of the .zip file being "corrupt" or because of an unrelated issue such as "out of memory", etc.