@polkadot/util/is/utf8.d.ts

A collection of useful utilities for @polkadot

/**
 * @name isUtf8
 * @summary Tests if the input is valid Utf8
 * @description
 * Checks to see if the input string or Uint8Array is valid Utf8
 */
export declare function isUtf8(value?: number[] | Uint8Array | string | null): boolean;