20 lines
721 B
JavaScript
20 lines
721 B
JavaScript
function decimalAdjust(type, number, precision = 0) {
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number = Number(number);
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if (Object.is(number, -0)) {
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number = '-0';
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}
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precision = Math.min(Number.parseInt(precision, 10), 292);
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if (precision) {
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const [magnitude, exponent = 0] = number.toString().split('e');
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let adjustedValue = Math[type](Number(`${magnitude}e${Number(exponent) + precision}`));
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if (Object.is(adjustedValue, -0)) {
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adjustedValue = '-0';
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}
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const [newMagnitude, newExponent = 0] = adjustedValue.toString().split('e');
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return Number(`${newMagnitude}e${Number(newExponent) - precision}`);
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}
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return Math[type](Number(number));
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}
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export { decimalAdjust };
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