openethereum/js/src/api/util/format.js

36 lines
1.2 KiB
JavaScript

// Copyright 2015, 2016 Ethcore (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
export function bytesToHex (bytes) {
return '0x' + bytes.map((b) => ('0' + b.toString(16)).slice(-2)).join('');
}
export function hex2Ascii (_hex) {
const hex = /^(?:0x)?(.*)$/.exec(_hex.toString())[1];
let str = '';
for (let i = 0; i < hex.length; i += 2) {
str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
}
return str;
}
export function asciiToHex (string) {
return '0x' + string.split('').map((s) => s.charCodeAt(0).toString(16)).join('');
}