es-toolkit
Version:
A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.
17 lines (16 loc) • 741 B
JavaScript
//#region src/compat/_internal/decimalAdjust.ts
function decimalAdjust(type, number, precision = 0) {
number = Number(number);
if (Object.is(number, -0)) number = "-0";
precision = Math.min(Number.parseInt(precision, 10), 292);
if (precision && Number.isFinite(Number(number))) {
const [magnitude, exponent = 0] = number.toString().split("e");
let adjustedValue = Math[type](Number(`${magnitude}e${Number(exponent) + precision}`));
if (Object.is(adjustedValue, -0)) adjustedValue = "-0";
const [newMagnitude, newExponent = 0] = adjustedValue.toString().split("e");
return Number(`${newMagnitude}e${Number(newExponent) - precision}`);
}
return Math[type](Number(number));
}
//#endregion
exports.decimalAdjust = decimalAdjust;