import React from 'react'; interface IHeaderCellProps { value: string; isSortedDesc?: boolean; } const HeaderCell = (props: IHeaderCellProps): JSX.Element => { const { value, isSortedDesc, } = props; let sortArrowClass = ''; if (isSortedDesc === undefined) { sortArrowClass = ''; } else if (isSortedDesc) { sortArrowClass = 'descending'; } else { sortArrowClass = 'ascending'; } return (