refactor: simplify property existence checks

Author: fml09

packages/openapi-ts/src/openApi/2.0.x/parser/pagination.ts

@@ -88,10 +88,7 @@ export const paginationField = ({
     paginationRegExp.lastIndex = 0;
 
     if (paginationRegExp.test(name)) {
-      const property = schema.properties[name];
-
-      // Skip if property doesn't exist
-      if (!property) continue;
+      const property = schema.properties[name]!;
 
       if (typeof property !== 'boolean' && !('$ref' in property)) {
         const schemaType = getSchemaType({ schema: property });

packages/openapi-ts/src/openApi/3.1.x/parser/pagination.ts

@@ -85,10 +85,7 @@ export const paginationField = ({
             (schema) => schema.type !== 'null',
           );
           if (nonNullCompositionSchemas.length === 1) {
-            const firstSchema = nonNullCompositionSchemas[0];
-
-            // Skip if schema doesn't exist
-            if (!firstSchema) continue;
+            const firstSchema = nonNullCompositionSchemas[0]!;
 
             const schemaTypes = getSchemaTypes({
               schema: firstSchema,