exec: how-can-you-create-custom-error-objects

Author: tahachm

questions/how-can-you-create-custom-error-objects/en-US.mdx

@@ -6,7 +6,7 @@ title: How can you create custom error objects?
 
 To create custom error objects in JavaScript, you can extend the built-in `Error` class. This allows you to add custom properties and methods to your error objects. Here's a quick example:
 
-```js
+```js live
 class CustomError extends Error {
   constructor(message) {
     super(message);
@@ -43,7 +43,7 @@ class CustomError extends Error {
 
 You can add custom properties to your custom error class to provide more context about the error.
 
-```js
+```js live
 class CustomError extends Error {
   constructor(message, errorCode) {
     super(message);
@@ -65,7 +65,7 @@ try {
 
 You can also add custom methods to your custom error class to handle specific error-related logic.
 
-```js
+```js live
 class CustomError extends Error {
   constructor(message, errorCode) {
     super(message);
@@ -89,7 +89,15 @@ try {
 
 You can use the `instanceof` operator to check if an error is an instance of your custom error class.
 
-```js
+```js live
+class CustomError extends Error {
+  constructor(message, errorCode) {
+    super(message);
+    this.name = 'CustomError';
+    this.errorCode = errorCode;
+  }
+}
+
 try {
   throw new CustomError('This is a custom error message', 404);
 } catch (error) {