[SalesForce] Id combined of Expression and Literal String

Sorry folks this one fell through the cracks. If you do not get an answer in a timely fashion in the future please make sure to open a support case with Salesforce.

There are a few contributing factors:

• the data type of scripts and styles are both String[] and Aura's auto coercion from comma separated list (String) to String[] does not kick in when you explicitly set the value of an attribute (it can't really because that could be a mistake of say the String[] represented paragraphs in a story)

• Setting the value to a String[] in init() happens too late for ltng:require to "see" it and currently there is no logic in ltng:require to observe changes to scripts or styles attributes

ideally be of these will be addressed in a future version of ltng:require (this is where a support case would have also come in handy BTW).

For now the workaround I have used in my projects has been to use $A.createComponent("ltng:require",...) in my init() and then add the instance to the body of my component that needs the require. This turns things into late binding/creation and works great. You can see this in action here https://github.com/forcedotcom/aura-ng/blob/master/metadata/aura/region/regionController.js

Please open that support case to help me get this prioritized and in the product plan!

afterScriptsLoaded event can call only single method as far as I got from the salesforce doc. You can't call multiple method from that event but if you want to call your second method from your first method you can use following code.

1. Controller.js

   ({  
   generateChart : function(component, event, helper) {
   
   console.log('first script called');
   component.secondmethod();
   },
   readData: function(cmp, event) {
    console.log('second script called');
   },
   
   })
   

2. component.cmp

   <ltng:require scripts="/resource/unid__jQuery,/resource/unid__highchart" afterScriptsLoaded="{!c.generateChart}"/>
   <aura:method name="secondmethod" action="{!c.readData}" access="PUBLIC"></aura:method>