Represent null with 'None' (#1659)

source-academy · Apr 9, 2024 · d6c3368 · d6c3368
1 parent 5a47d62
commit d6c3368
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/createContext.ts b/src/createContext.ts
@@ -709,11 +709,11 @@ export const importBuiltins = (context: Context, externalBuiltIns: CustomBuiltIn
       defineBuiltin(context, 'is_string(val)', misc.is_string)
       defineBuiltin(context, 'is_function(val)', misc.is_function)
       defineBuiltin(context, 'is_boolean(val)', misc.is_boolean)
-      defineBuiltin(context, 'is_None(val)', misc.is_undefined)
+      defineBuiltin(context, 'is_None(val)', list.is_null)
       defineBuiltin(context, 'parse_int(str, radix)', misc.parse_int)
       defineBuiltin(context, 'char_at(str, index)', misc.char_at)
       defineBuiltin(context, 'arity(f)', misc.arity)
-      defineBuiltin(context, 'None', undefined)
+      defineBuiltin(context, 'None', null)
       defineBuiltin(context, 'NaN', NaN)
       defineBuiltin(context, 'Infinity', Infinity)