How convert hex number to decimal in solidity?

Question

I would like to convert a hex number to decimal.

https://ethereum.stackexchange.com/questions/47472/integer-to-hexadecimal-number?rq=1 — Majd TL, Nov 20 '21 at 08:37
Hi AmiraliSahraei! Welcome to Ethereum Stackexchange! What are you trying to achieve? What types are involved to do the conversion in solidity? — Ismael, Nov 23 '21 at 16:52

score -1 · Answer 1 · answered Feb 14 '23 at 09:17

-1

Here's how you can do it:

const { utils, BigNumber } = require("ethers);
const largeNumber = BigNumber.from(0x3eef
0f128b45c7eef) // write your hex number inside the bracket
console.log(largeNumber)
console.log(largeNumber.toString()) // if you want to see the bignumber.

You can now take it a step further by converting the bignumber (largeNumber) to decimal like so:

const toDecimal = utils.formatEther(largeNumber);
console.log(toDecimal)

Note Note that ethers version 6 beta has been throwing some errors. Instead, install ether version 5.7.2 - npm install ethers@5.7.4

answered Feb 14 '23 at 09:17

Ololade

73
7

The question explicitly asks how to do it in solidity. – Ismael Feb 16 '23 at 06:35
That's Solidity - if you don't know. – Ololade Feb 16 '23 at 09:34
This isn't solidity const { utils, BigNumber } = require("ethers"). – Ismael Feb 16 '23 at 18:56
Run it in a solidity environment and see if it will run or throw an error. – Ololade Feb 17 '23 at 08:04
It errors out in Remix ParserError: Expected identifier but got '{'. – Ismael Feb 17 '23 at 14:12

How convert hex number to decimal in solidity?

1 Answers1