gistfile1.js

/* Begin node.js Style */

playground.performAction = function(input, callback) {
  var processor = new jsonld.JsonLdProcessor();

  if(playground.activeTab === 'tab-compacted') {
    processor.compact(input, function(err, compacted) {
      if(err) {
        return callback(err);
      }
      // TODO: update UI with 'compacted output

      callback();
    }
  }
  else ...
};

playground.performAction({}, function(err) {
  if(err) {
    // TODO: display errors
    return;
  }
  // TODO: update UI, etc.
});

/* End node.js Style */

/* Begin Futures Style */

playground.performAction = function(input) {
  return new Future(function(resolver) {
    var processor = new jsonld.JsonLdProcessor();

    if(playground.activeTab === 'tab-compacted') {
      processor.compact(input).done(function(compacted) {
        // TODO: update UI with 'compacted' output

        resolver.resolve();
      }, resolver.reject);
    }
    else ...
  };
};

playground.performAction({}).done(
  function() {
    // TODO: update UI, etc.
  },
  function(err) {
    // TODO: display errors
  }
});

/* End Futures Style */

/* Begin ES6 "Thenables" Style */

playground.performAction = function(input) {
  return {then: function(success) {
    var processor = new jsonld.JsonLdProcessor();

    if(playground.activeTab === 'tab-compacted') {
      var compacted = yield processor.compact(input);
      // TODO: update UI with 'compacted' output

      success();
    }
    else ...
  };
};

try {
  yield playground.performAction({});
  // TODO: update UI, etc.
}
catch(e) {
  // TODO: display errors
}

/* End ES6 "Thenables" Style */