Flowboost Multi-select Search Replace

Question

FlowBoost has already impressed me with its potential since I started using it earlier this week. Thanks to Sanford and Etumos. I am wondering if there is a better way to achieve our goal with Flowboost's built-in functions to search/replace multi select values.
 
In searching the community, I came across this thread that shows full JS, but it appears that it could be much simpler with FBString.list.replaceAll()), although I'm not sure how to work with it. Below is an example:
 
Current Value of lead.fieldname: AA; BB; CC

Replace: AA with X;Y
Replace: BB with PQ
Replace CC with null

Final Value of lead.fieldname: X;Y; PQ;
 
Is there any recommendation on how to construct the Flowboost JSON payload template for this function?

SanfordWhiteman · Accepted Answer

Sorry, forgot a quirk about the webhook payload textbox. You actually have to double-escape the regexp to have it sent correctly to FlowBoost: /\s*;\s*/

SanfordWhiteman · Answer

Hi Chirag, glad to hear you’re enjoying FlowBoost!

The FBString.list method was removed during a major version upgrade to FlowBoost (that thread is from 2016) because it was too specialized: you can do the same and much more with vanilla JS.

I’ve been meaning to publish a blog post with a bunch of different ways to work with multivalued (i.e. delimited string) fields in JS.

For your particular case, the JavaScript (it’s not JSON!) webhook payload you can use is:

let values = {{Lead.Your Multivalued String}}.split(/\s*;\s*/);
values = values
  .map( value => value === "BB" ? "PQ" : value )
  .map( value => value === "AA" ? ["X","Y"] : value )
  .filter( value => value !== "CC" );

var multiValuedString = values.flat().join(";");

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