const onSeachClick = (searchTerm) => {

   if(searchTerm !== '') {

      searchForMovies(searchTerm)

   } else {

       console.log('a search term should be provided')

   }

}

// Utils

const inNotEmpty = R.compose(

   R.not,

   R.isEmpty

);

const onSearchClick = () => {

  R.ifElse(

     isNotEmpty,  // logic to check

     searchForMovices, // do it if true

     log('a search term should be provided') // do it if false

  )

}    

/*

    Example2:

*/

 function processSearchResponse(response) {

     // check total_results prop from response,

     // it shuold greater than 0

     const searchHasResult = R.compose(

         R.lt(),

         R.prop('total_results')

     );

     // get results props from response,

     // then createMoviesElements called

     const createElementFromResults = R.compose(

         createMovicesElements,

         R.prop('results')

     );

     //always return empty

     const createArrayWithNotFound = R.always([

         createMoviceNotFoundElement({})

     ]);

     const elements = R.ifElse(

         searchHasResult,

         createElementFromResults,

         createArrayWithNotFound

     )(response);

 }