@segment/analytics-core/src/validation/errors.ts

This package represents core 'shared' functionality that is shared by analytics packages. This is not designed to be used directly, but internal to analytics-node and analytics-browser.

export class ValidationError extends Error {
  field: string

  constructor(field: string, message: string) {
    super(`${field} ${message}`)
    this.field = field
  }
}