Initializing help system before first use

# Executing a Scenario

You can execute individual scenarios using the JS API.

There are two ways to do this: from a scenario object you have loaded using a `ScenarioObserver` or from the view object, passing in a scenario id. In both cases you can specify the execution mode to submit the job with, this defaults to RUN. Both methods submit the execution job asynchronously and return a Promise object which resolves when the job has been successfully submitted or gets rejected if the job could not be queued.

The following is an example of executing a scenario directly from the scenario object. It uses a custom execution mode named FAST_MODE:

    insight.getView().withFirstScenario()
            .withSummaryData()
            .notify(function (scenario) {
                scenario.execute('FAST_MODE')
                        .then(function () {
                            console.log('scenario successfully queued');
                        })
                        .catch(function () {
                            console.error('scenario failed to queue')
                        })
            })
         .start();

The next example executes a scenario from outside of a `ScenarioObserver`. First it looks up the `id` of the first scenario in the selection. Then it uses that together with the custom execution mode name, FAST_MODE:

    var view = insight.getView();
    view.getScenarioProperties(0)
            .then(function (props) {
                return props.getId();
            })
            .then(function (scenarioId) {
                return view.executeScenario(scenarioId, 'FAST_MODE');
            })
            .then(function () {
                console.log('scenario successfully queued');
            })
            .catch(function (error) {
                console.error('scenario failed to queue');
            });

Parent Topic Modifying Scenario Data

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