react-format-currency/src/utils.js

React component to format currency in an input or as a text field

function returnTrue() { return true; }

function removeAllButLast(string, token) {
  const parts = string.split(token);

  if (parts[1] === undefined) {
    return string;
  }

  return (parts.length > 1) ? parts.slice(0, -1).join('') + token + parts.slice(-1) : '';
}
export {
  returnTrue,
  removeAllButLast,
};