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authorHsuan Lee <hsuan@cobinhood.com>2019-01-19 18:42:04 +0800
committerHsuan Lee <hsuan@cobinhood.com>2019-01-19 18:42:04 +0800
commit7ae38906926dc09bc10670c361af0d2bf0050426 (patch)
tree5fb10ae366b987db09e4ddb4bc3ba0f75404ad08 /packages/web3-wrapper/src/utils.ts
parentb5fd3c72a08aaa6957917d74c333387a16edf66b (diff)
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Update dependency packages
Diffstat (limited to 'packages/web3-wrapper/src/utils.ts')
-rw-r--r--packages/web3-wrapper/src/utils.ts54
1 files changed, 0 insertions, 54 deletions
diff --git a/packages/web3-wrapper/src/utils.ts b/packages/web3-wrapper/src/utils.ts
deleted file mode 100644
index 1aba3c75a..000000000
--- a/packages/web3-wrapper/src/utils.ts
+++ /dev/null
@@ -1,54 +0,0 @@
-import { BigNumber } from '@0x/utils';
-import * as _ from 'lodash';
-
-export const utils = {
- convertHexToNumber(value: string): number {
- const valueBigNumber = new BigNumber(value);
- const valueNumber = valueBigNumber.toNumber();
- return valueNumber;
- },
- convertHexToNumberOrNull(hex: string | null): number | null {
- if (_.isNull(hex)) {
- return null;
- }
- const decimal = utils.convertHexToNumber(hex);
- return decimal;
- },
- convertAmountToBigNumber(value: string | number | BigNumber): BigNumber {
- const num = value || 0;
- const isBigNumber = BigNumber.isBigNumber(num);
- if (isBigNumber) {
- return num as BigNumber;
- }
-
- if (_.isString(num) && (num.indexOf('0x') === 0 || num.indexOf('-0x') === 0)) {
- return new BigNumber(num.replace('0x', ''), 16);
- }
-
- const baseTen = 10;
- return new BigNumber((num as number).toString(baseTen), baseTen);
- },
- encodeAmountAsHexString(value: string | number | BigNumber): string {
- const valueBigNumber = utils.convertAmountToBigNumber(value);
- const hexBase = 16;
- const valueHex = valueBigNumber.toString(hexBase);
-
- return valueBigNumber.isLessThan(0) ? `-0x${valueHex.substr(1)}` : `0x${valueHex}`;
- },
- numberToHex(value: number): string {
- if (!isFinite(value) && !utils.isHexStrict(value)) {
- throw new Error(`Given input ${value} is not a number.`);
- }
-
- const valueBigNumber = new BigNumber(value);
- const hexBase = 16;
- const result = valueBigNumber.toString(hexBase);
-
- return valueBigNumber.lt(0) ? `-0x${result.substr(1)}` : `0x${result}`;
- },
- isHexStrict(hex: string | number): boolean {
- return (
- (_.isString(hex) || _.isNumber(hex)) && /^(-)?0x[0-9a-f]*$/i.test(_.isNumber(hex) ? hex.toString() : hex)
- );
- },
-};