Finch provides several additional filters for use in templates. See here for inbuilt Jingoo filters.
strftime
strftime(fmt, date) parses the string date as an ISO 8601 timestamp and then formats it according to fmt (see
here for specification of the format string).
date
date is an alias for strftime.
strptime
strptime(fmt, date) parses the string date according to the format string fmt and then formats it as an ISO 8601
timestamp string.
react
react(source) looks for a JavaScript file at the path source (relative to where finch has been called from) which should export a function make that is a React component. It returns the result of ReactDOMServer.renderToString(React.createElement(make, { })).
react_static
react_static(source) is the same as react, except that it calls ReactDOMServer.renderToStaticMarkup instead of
ReactDOMServer.renderToString (see
here
for the difference).