Solved
Using 'in' clause in a mapper
I am trying to use ‘in’ clause in a mapper snap. But it does not evaluate correctly.
30 in [30,40,50] ----> false
30 in [‘30’,‘4’,‘50’] ----> false
(x => x in [‘4’,‘5’,‘6’])(4) ----> false
Has anyone tried it already? Am I missing anything?
Syntax for checking if a value is in an array is the same as in javascript.
Try:
[30,40,50].indexOf(30) != -1 —> true
[30,40,50].indexOf(90) != -1 —> false
The reason for the “!= -1” is that indexOf returns -1 if the element is not found in an array. Otherwise it returns the index.
Same method works for strings.
