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fix(integer base converter): support bigint (#872)
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@ -11,6 +11,9 @@ describe('integer-base-converter', () => {
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expect(convertBase({ value: '10100101', fromBase: 2, toBase: 16 })).toEqual('a5');
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expect(convertBase({ value: '10100101', fromBase: 2, toBase: 16 })).toEqual('a5');
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expect(convertBase({ value: '192654', fromBase: 10, toBase: 8 })).toEqual('570216');
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expect(convertBase({ value: '192654', fromBase: 10, toBase: 8 })).toEqual('570216');
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expect(convertBase({ value: 'zz', fromBase: 64, toBase: 10 })).toEqual('2275');
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expect(convertBase({ value: 'zz', fromBase: 64, toBase: 10 })).toEqual('2275');
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expect(convertBase({ value: '42540766411283223938465490632011909384', fromBase: 10, toBase: 10 })).toEqual('42540766411283223938465490632011909384');
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expect(convertBase({ value: '42540766411283223938465490632011909384', fromBase: 10, toBase: 16 })).toEqual('20010db8000085a300000000ac1f8908');
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expect(convertBase({ value: '20010db8000085a300000000ac1f8908', fromBase: 16, toBase: 10 })).toEqual('42540766411283223938465490632011909384');
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});
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});
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});
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});
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});
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});
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@ -5,16 +5,16 @@ export function convertBase({ value, fromBase, toBase }: { value: string; fromBa
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let decValue = value
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let decValue = value
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.split('')
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.split('')
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.reverse()
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.reverse()
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.reduce((carry: number, digit: string, index: number) => {
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.reduce((carry: bigint, digit: string, index: number) => {
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if (!fromRange.includes(digit)) {
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if (!fromRange.includes(digit)) {
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throw new Error(`Invalid digit "${digit}" for base ${fromBase}.`);
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throw new Error(`Invalid digit "${digit}" for base ${fromBase}.`);
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}
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}
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return (carry += fromRange.indexOf(digit) * fromBase ** index);
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return (carry += BigInt(fromRange.indexOf(digit)) * BigInt(fromBase) ** BigInt(index));
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}, 0);
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}, 0n);
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let newValue = '';
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let newValue = '';
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while (decValue > 0) {
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while (decValue > 0) {
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newValue = toRange[decValue % toBase] + newValue;
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newValue = toRange[Number(decValue % BigInt(toBase))] + newValue;
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decValue = (decValue - (decValue % toBase)) / toBase;
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decValue = (decValue - (decValue % BigInt(toBase))) / BigInt(toBase);
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}
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}
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return newValue || '0';
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return newValue || '0';
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}
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}
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