Can't map data with "string" data type

[onlylove855]

I want map data like this:
var aaa = "QSM"
map "QSM" to "ZZZ"

when I execute it, it shows error "Can't map data with "string" data type"

Why am I getting this error?

[FooJiaYin]

+1 Also getting this error when mapping data

[sparkls0]

You're getting this error because your variable 'aaa' is a string type variable

Map is a function for arrays

You need to turn your string into an array

[amaillet2024]

hello, how can we turn a string into an array ?

[amaillet2024]

found my own answer so I share it :
create a insertData block (since JS doesn't work) and use push to create an array or add a value to an array.