N/search Module
search.create.promise()
Method Description: Creates a new search asynchronously and returns it as a search.Search object. The parameters and errors thrown for this method are the same as those for search.create(options). For more information on promises, see Promise Object.
Returns: Promise Object
Synchronous Version: search.create(options)
Supported Script Types: All client-side scripts For more information, see SuiteScript 2.0 Client Script Type.
Governance: None
Module: N/search Module
Since: 2015.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=search.create.promise(options)

// Code Example 1

//Add additional code

//...

search.create.promise({

          type: search.Type.SALES_ORDER

     })

     .then(function(result) {

          log.debug({

             details: "Completed: " + result

          });

          // do something after completion

     })

     .catch(function(reason) {

          log.debug({

              details: "Failed: " + reason

          })

          // do something on failure

     });

//...

//Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4440790350.html