utml.js
function cacheTemplate(fn, options) {
  if (options.cache && options.filename) {
    cache[options.filename] = fn;
  }
}
function cacheTemplate(fn, options) {
  if (options.cache && options.filename) {
    cache[options.filename] = fn;
  }
}
function cacheTemplate ( fn , options ) { if ( options . cache && options . filename ) { cache [ options . filename ] = fn ; } }
Store the given fn in the cache

@param {Function} fn
@param {object} options
Store the given fn in the cache