abp.features API allows you to check features or get the values of the features on the client side. You can read the current value of a feature in the client side only if it is allowed by the feature definition (on the server side).
abp.features.values can be used to access to the all feature values.
var excelExportFeatureValue = abp.features.values["ExportingToExcel"];
Then you can check the value of the feature to perform your logic.