43 lines
1.4 KiB
JavaScript
43 lines
1.4 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/>.
|
||
|
|
|
||
|
|
import BigNumber from 'bignumber.js';
|
||
|
|
import { isInstanceOf } from '../src/api/util/types';
|
||
|
|
|
||
|
|
export { isFunction, isInstanceOf } from '../src/api/util/types';
|
||
|
|
export { isAddress } from '../src/abi/util/address';
|
||
|
|
|
||
|
|
const ZEROS = '000000000000000000000000000000000000000000000000000000000000';
|
||
|
|
|
||
|
|
export function isBigNumber (test) {
|
||
|
|
return isInstanceOf(test, BigNumber);
|
||
|
|
}
|
||
|
|
|
||
|
|
export function isBoolean (test) {
|
||
|
|
return Object.prototype.toString.call(test) === '[object Boolean]';
|
||
|
|
}
|
||
|
|
|
||
|
|
export function isHexNumber (_test) {
|
||
|
|
if (_test.substr(0, 2) !== '0x') {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
const test = _test.substr(2);
|
||
|
|
const hex = `${ZEROS}${(new BigNumber(_test, 16)).toString(16)}`.slice(-1 * test.length);
|
||
|
|
|
||
|
|
return hex === test;
|
||
|
|
}
|