Map definition issues

Feature Discussion User Defined Functions (UDF)
1

Hi,

I was trying to define a map like this

(1)
local m = map{ keyArr[i] =   list{ dataArr[ i ],  sizeArr[ i ] } } -- compile issue

then I tried 2.

(2).
local x = list{ dataArr[ i ],  sizeArr[ i ] }
local m = map{ keyArr[i] =   x } -- compile issue

then I tried

(3)
local key = keyArr[i]
local x = list{ dataArr[ i ],  sizeArr[ i ] }
local m = map{ key =   x } -- no compile issue, but the key is 'key' and not value of key which is keyArr[i]

so finally I had to

(4)
local x = list{ dataArr[ i ],  sizeArr[ i ] }
local y = map()
y[ apidArr[ i ] ] = x

Why 1, 2 or 3 didn’t work. Isn’t it tough to explore something like this when we do not find associated documentation.