[[ Bug 20931 ]] Update LCB language reference

livecodeali · livecodeali · commit 545fef55b458 · 2018-03-08T17:16:10.000Z
diff --git a/docs/guides/LiveCode Builder Language Reference.md b/docs/guides/LiveCode Builder Language Reference.md
@@ -1060,7 +1060,8 @@ Result expressions are not assignable.
       : '[' [ <Elements: ExpressionList> ] ']'
 
 A list expression evaluates all the elements in the expression list from
-left to right and constructs a list value with them as elements.
+left to right and constructs a list value with them as elements. Each 
+expression is converted to `optional any` when constructing the list.
 
 The elements list is optional, so the empty list can be specified as
 *[]*.
@@ -1078,7 +1079,8 @@ List expressions are not assignable.
 
 An array expression evaluates all of the key and value expressions
 from left to right, and constructs an **Array** value as appropriate.
-Each key expression must evaluate to a **String**.
+Each key expression must evaluate to a **String**. Each value expression 
+is converted to `optional any` when constructing the array.
 
 The contents are optional, so the empty array can be written as `{}`.
 
