validators: add validateUndefined

Added the `validateUndefined()` method.
VoltrexKeyva · Jun 18, 2021 · 324b78e · 324b78e
1 parent 8d1c38b
commit 324b78e
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/lib/internal/validators.js b/lib/internal/validators.js
@@ -229,6 +229,11 @@ const validateFunction = hideStackFrames((value, name) => {
     throw new ERR_INVALID_ARG_TYPE(name, 'Function', value);
 });
 
+const validateUndefined = hideStackFrames((value, name) => {
+  if (value !== undefined)
+    throw new ERR_INVALID_ARG_TYPE(name, 'undefined', value);
+});
+
 module.exports = {
   isInt32,
   isUint32,
@@ -247,6 +252,7 @@ module.exports = {
   validateSignalName,
   validateString,
   validateUint32,
+  validateUndefined,
   validateCallback,
   validateAbortSignal,
 };