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Adjust formatting with large balance values (#3871)

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Jaco Greeff 2020-10-14 19:14:52 +02:00 committed by GitHub
parent 583fa4bacd
commit 71f6ec83c1
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1 changed files with 9 additions and 1 deletions
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10
packages/react-components/src/InputBalance.tsx
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@ -41,8 +41,16 @@ const DEFAULT_BITLENGTH = BitLengthOption.CHAIN_SPEC as BitLength;
function reformat (value: string | BN, isDisabled?: boolean): string {
if (isBn(value)) {
// format for 4 decimals (align with util)
let fmt = (value.mul(BN_TEN_THOUSAND).div(BN_TEN.pow(new BN(formatBalance.getDefaults().decimals))).toNumber() / 10000).toFixed(4);
const valStr = value
.mul(BN_TEN_THOUSAND)
.div(BN_TEN.pow(new BN(formatBalance.getDefaults().decimals)))
.toString()
.padStart(5, '0'); // 4 after decimal, 1 before, min 5
// dive using string format (the value may be too large for 2^53-1)
let fmt = `${valStr.substr(0, valStr.length - 4)}.${valStr.slice(-4)}`;
// remove all trailing 0's until the decimal
while (fmt.length !== 1 && ['.', '0'].includes(fmt[fmt.length - 1])) {
const isLast = fmt.endsWith('.');