Convert any file to base64 in VBCS

Summary:

Hi all i am trying to convert file to base64 in VBCS.

Content (required):

Whenever we are converting file to base64 it is a good practice to use promise. I am using the same but the file conversion is happening after completion of the function.

Version (include the version you are using, if applicable):

Visual Builder Runtime Version

2307.0.0

Code Snippet (add any code snippets that support your topic, if applicable):

This is one Function

var reader = new FileReader();  

      // Closure to capture the file information.    

      reader.onload = (function (theFile)  

      {  

          return function (e)  

          {  

              var binaryData = e.target.result;  

              //Converting Binary Data to base 64