update converters (#7054)

packages/web3-utils/src/converters.ts

@@ -32,6 +32,7 @@ import {
 	utils,
 	utils as validatorUtils,
 	validator,
+	bigintPower,
 } from 'web3-validator';
 
 import {
@@ -505,7 +506,7 @@ export const fromWei = (number: Numbers, unit: EtherUnits | number): string => {
 		if (unit < 0 || !Number.isInteger(unit)) {
 			throw new InvalidIntegerError(unit);
 		}
-		denomination = BigInt(10)**BigInt(unit);
+		denomination = bigintPower(BigInt(10),BigInt(unit));
 	}
 
 
@@ -575,7 +576,7 @@ export const toWei = (number: Numbers, unit: EtherUnits | number): string => {
 			throw new InvalidIntegerError(unit);
 		}
 
-		denomination = BigInt(10)**BigInt(unit);
+		denomination = bigintPower(BigInt(10),BigInt(unit));
 	}
 
 	let parsedNumber = number;
@@ -608,7 +609,6 @@ export const toWei = (number: Numbers, unit: EtherUnits | number): string => {
 
 	// join the value removing `.` from
 	// 24.56 -> 2456
-
 	const value = BigInt(`${integer}${fraction}`);
 
 	// multiply value with denomination

packages/web3-validator/src/validation/numbers.ts

@@ -28,6 +28,10 @@ export const isBigInt = (value: ValidInputTypes): boolean => typeof value === 'b
 // 	you can find more at: https://github.com/babel/babel/issues/13109 and https://github.com/web3/web3.js/issues/6187
 /** @internal */
 export const bigintPower = (base: bigint, expo: bigint) => {
+	// edge case
+	if (expo === BigInt(0)) {
+		return BigInt(1);
+	}
 	let res = base;
 	for (let index = 1; index < expo; index += 1) {
 		res *= base;