@tetcoin/util/u8a/toString.js

A collection of useful utilities for @tetcoin

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = u8aToString;
// Copyright 2017-2019 @polkadot/util authors & contributors
// This software may be modified and distributed under the terms
let decoder;

function polyfilledDecode(value) {
  return value.reduce((str, code) => {
    return str + String.fromCharCode(code);
  }, '');
}

try {
  decoder = new TextDecoder('utf-8');
} catch (error) {
  decoder = {
    decode: polyfilledDecode
  };
}
/**
 * @name u8aToString
 * @summary Creates a utf-8 string from a Uint8Array object.
 * @description
 * `UInt8Array` input values return the actual decoded utf-8 string. `null` or `undefined` values returns an empty string.
 * @example
 * <BR>
 *
 * ```javascript
 * import { u8aToString } from '@tetcoin/util';
 *
 * u8aToString(new Uint8Array([0x68, 0x65, 0x6c, 0x6c, 0x6f])); // hello
 * ```
 */


function u8aToString(value) {
  if (!value || !value.length) {
    return '';
  }

  return decoder.decode(value);
}