External module "utils/async/try-then/docs/types/index.d"

Export assignment trythenAsync

• trythenAsync(x: TryFunction, y: ThenFunction, done: Callback): void

• If a function does not return an error, invokes a callback with the function result; otherwise, invokes a second function y.

  Parameters

  • x: TryFunction

    function to invoke

  • y: ThenFunction

    function to invoke if x returns an error

  • done: Callback

    callback to invoke upon completion

  Returns void

  Example

  var randu = require( `@stdlib/random/base/randu` );
  
  function x( clbk ) {
      setTimeout( onTimeout, 0 );
      function onTimeout() {
          if ( randu() > 0.5 ) {
              return clbk( null, 1.0 );
          }
          clbk( new Error( 'beep' ) );
      }
  }
  
  function y( clbk ) {
      setTimeout( onTimeout, 0 );
      function onTimeout() {
          clbk( null, -1.0 );
      }
  }
  
  function done( error, result ) {
      if ( error ) {
          throw error;
      }
      console.log( result );
  }
  
  trythenAsync( x, y, done );