Activity › Forums › Salesforce® Discussions › What does reduce() method do in JS Controller in Salesforce? Salesforce® Discussions What does reduce() method do in JS Controller in Salesforce? Posted by Deepak on August 28, 2020 at 8:52 AM What does reduce() method do in JS Controller in Salesforce? Sumit kumar replied 5 years, 9 months ago 3 Members · 2 Replies 2 Replies Anjali Member August 28, 2020 at 12:11 PM The reduce() method applies a function against an accumulator and each element in the array (from left to right) to reduce it to a single value. [adinserter block='9'] Sumit kumar Member August 30, 2020 at 4:10 PM The reduce() method applies a function against an accumulator and each element in the array (from left to right) to reduce it to a single value. Log In to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me