@xyo-network/react-shared/src/components/bigint/helpers/formatBigIntInput.ts

Common React library for all XYO projects that use React

/**
 * Format a raw input string (i.e. Change event from input type=text)
 * Designed to filter out non-digits and extra decimals
 **/
export const formatBigIntInput = (rawValue: string) => {
  // remove all alpha characters but allow decimals
  const filteredValue = rawValue.replaceAll(/[^\d.]/g, '')
  // only allow one decimal point
  if (filteredValue.split('.').length > 2) return
  return filteredValue
}