### Answer Yes, both patterns are supported in the Code Tool JavaScript sandbox. [(1) ]() [(2) ]() The sandbox supports standard JavaScript built-ins including

Math

,

JSON

,

Date

,

Array

,

Object

, and

String

methods. This means: Method chaining like

Object.keys() .sort() .forEach()

is fully supported since these are standard Array methods. Named functions can be defined anywhere in your code, including inside comparators or callbacks. Both approaches work:

javascript
// Method chaining - supported
Object.keys(data) .sort() .forEach(key => {
  console.log(key, data[key]) ;
}) ;

// Named function in comparator - supported
Object.keys(data) .sort(function compare(a, b) {
  function p(s) { return parseInt(s) ; }
  return p(a) - p(b) ;
}) ;

[(1) ]() The choice between chaining and a for loop is purely stylistic — use whichever is clearer for your use case. [(1) ]() [(2) ]()

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

​ To learn more, see the sources I considered: [[1] Code Tool](https://docs.retellai.com/build/single-multi-prompt/code-tool) [[2] Code Node](https://docs.retellai.com/build/conversation-flow/code-node) ​