chore: refactor again as per suggestion

Author: ghiscoding

packages/vite/src/node/plugins/json.ts

@@ -51,26 +51,24 @@ export function jsonPlugin(
         if (options.stringify !== false) {
           if (options.namedExports && /^\s*\{/.test(json)) {
             const parsed = JSON.parse(json)
-            if (typeof parsed === 'object' && parsed != null) {
-              const keys = Object.keys(parsed)
-
-              let code = ''
-              let defaultObjectCode = '{\n'
-              for (const key of keys) {
-                if (key === makeLegalIdentifier(key)) {
-                  code += `export const ${key} = ${serializeValue(parsed[key])};\n`
-                  defaultObjectCode += `  ${key},\n`
-                } else {
-                  defaultObjectCode += `  ${JSON.stringify(key)}: ${serializeValue(parsed[key])},\n`
-                }
+            const keys = Object.keys(parsed)
+
+            let code = ''
+            let defaultObjectCode = '{\n'
+            for (const key of keys) {
+              if (key === makeLegalIdentifier(key)) {
+                code += `export const ${key} = ${serializeValue(parsed[key])};\n`
+                defaultObjectCode += `  ${key},\n`
+              } else {
+                defaultObjectCode += `  ${JSON.stringify(key)}: ${serializeValue(parsed[key])},\n`
               }
-              defaultObjectCode += '}'
+            }
+            defaultObjectCode += '}'
 
-              code += `export default ${defaultObjectCode};\n`
-              return {
-                code,
-                map: { mappings: '' },
-              }
+            code += `export default ${defaultObjectCode};\n`
+            return {
+              code,
+              map: { mappings: '' },
             }
           }