@base-ui-components/react/esm/number-field/utils/validate.js

Base UI is a library of headless ('unstyled') React components and low-level hooks. You gain complete control over your app's CSS and accessibility features.

import { getFormatter } from '../../utils/formatNumber.js';
import { clamp } from '../../utils/clamp.js';
export function removeFloatingPointErrors(value, format = {}) {
  return parseFloat(getFormatter('en-US', {
    maximumFractionDigits: format.maximumFractionDigits,
    minimumFractionDigits: format.minimumFractionDigits,
    useGrouping: false
  }).format(value));
}
export function toValidatedNumber(value, {
  step,
  minWithDefault,
  maxWithDefault,
  minWithZeroDefault,
  format
}) {
  if (value === null) {
    return value;
  }
  const clampedValue = clamp(value, minWithDefault, maxWithDefault);

  // Ensure values are divisible by the step, starting from the min value.
  if (step != null) {
    const stepsFromMin = (clampedValue - minWithZeroDefault) / step;
    const roundedSteps = Math.round(stepsFromMin);
    const snappedValue = minWithZeroDefault + roundedSteps * step;
    return removeFloatingPointErrors(snappedValue, format);
  }
  return clampedValue;
}