dist/index.cjs.js
function convertTimestamps(originVal, targetVal) {
    if (originVal === '%convertTimestamp%') {
        // firestore timestamps
        // @ts-ignore
        if (isWhat.isAnyObject(targetVal) && !isWhat.isPlainObject(targetVal) && isWhat.isFunction(targetVal.toDate)) {
            // @ts-ignore
            return targetVal.toDate();
        }
        // strings
        if (isWhat.isString(targetVal) && isWhat.isDate(new Date(targetVal))) {
            return new Date(targetVal);
        }
    }
    return targetVal;
}
function convertTimestamps(originVal, targetVal) {
    if (originVal === '%convertTimestamp%') {
        // firestore timestamps
        // @ts-ignore
        if (isWhat.isAnyObject(targetVal) && !isWhat.isPlainObject(targetVal) && isWhat.isFunction(targetVal.toDate)) {
            // @ts-ignore
            return targetVal.toDate();
        }
        // strings
        if (isWhat.isString(targetVal) && isWhat.isDate(new Date(targetVal))) {
            return new Date(targetVal);
        }
    }
    return targetVal;
}
convert to new Date() if defaultValue == '%convertTimestamp%'

@param {*} originVal
@param {*} targetVal
@returns {Date}