Background: I have been tasked to help resolve an issue with the following error:
'Promise' is undefined'
Which is part of our sessionsmodel.js script:
return Promise.all(promises);
promises is an array of actions that need to happen and if any fail it is rejected.
Question: Based on my research IE does not support Promise so is there a work around that can be applied to this return value that will accomplish the same thing?
Since you are using Backbone, the promises are probably jQuery promises. You could use jQuery .when function to do the same as Promise.all:
return $.when.apply($, promises);
For most other simple situations where you call functions like save and fetch, you could avoid promises completely by using the provided callbacks:
model.save({
context: this,
success: this.onModelSuccess
});
There's no need to use another library because Backbone uses jQuery already (by default), unless you don't like jQuery deferred or that you're using something else in place of jQuery.
