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fix(integer base converter): support bigint (#872)

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sharevb 2024-04-22 08:45:51 +02:00 • committed by GitHub
parent 23f82d956a
commit 9eac9cb2a9
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2 changed files with 8 additions and 5 deletions
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3
src/tools/integer-base-converter/integer-base-converter.model.test.ts
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@ -11,6 +11,9 @@ describe('integer-base-converter', () => {
expect(convertBase({ value: '10100101', fromBase: 2, toBase: 16 })).toEqual('a5'); expect(convertBase({ value: '10100101', fromBase: 2, toBase: 16 })).toEqual('a5');
expect(convertBase({ value: '192654', fromBase: 10, toBase: 8 })).toEqual('570216'); expect(convertBase({ value: '192654', fromBase: 10, toBase: 8 })).toEqual('570216');
expect(convertBase({ value: 'zz', fromBase: 64, toBase: 10 })).toEqual('2275'); expect(convertBase({ value: 'zz', fromBase: 64, toBase: 10 })).toEqual('2275');
expect(convertBase({ value: '42540766411283223938465490632011909384', fromBase: 10, toBase: 10 })).toEqual('42540766411283223938465490632011909384');
expect(convertBase({ value: '42540766411283223938465490632011909384', fromBase: 10, toBase: 16 })).toEqual('20010db8000085a300000000ac1f8908');
expect(convertBase({ value: '20010db8000085a300000000ac1f8908', fromBase: 16, toBase: 10 })).toEqual('42540766411283223938465490632011909384');
}); });
}); });
}); });

10
src/tools/integer-base-converter/integer-base-converter.model.ts
View file

@ -5,16 +5,16 @@ export function convertBase({ value, fromBase, toBase }: { value: string; fromBa
let decValue = value let decValue = value
.split('') .split('')
.reverse() .reverse()
.reduce((carry: number, digit: string, index: number) => { .reduce((carry: bigint, digit: string, index: number) => {
if (!fromRange.includes(digit)) { if (!fromRange.includes(digit)) {
throw new Error(`Invalid digit "${digit}" for base ${fromBase}.`); throw new Error(`Invalid digit "${digit}" for base ${fromBase}.`);
} }
return (carry += fromRange.indexOf(digit) * fromBase ** index); return (carry += BigInt(fromRange.indexOf(digit)) * BigInt(fromBase) ** BigInt(index));
}, 0); }, 0n);
let newValue = ''; let newValue = '';
while (decValue > 0) { while (decValue > 0) {
newValue = toRange[decValue % toBase] + newValue; newValue = toRange[Number(decValue % BigInt(toBase))] + newValue;
decValue = (decValue - (decValue % toBase)) / toBase; decValue = (decValue - (decValue % BigInt(toBase))) / BigInt(toBase);
} }
return newValue || '0'; return newValue || '0';
} }