Update 102-utilizing-error-objects.md (#2136)

content/roadmaps/106-javascript/content/107-javascript-control-flow/100-exception-handling/102-utilizing-error-objects.md

@@ -1 +1,34 @@
-# Utilizing error objects
+# Utilizing error objects
+
+When a runtime error occurs, a new `Error` object is created and thrown. With this `Error` object, we can determine the type of the Error and handle it according to its type.
+
+## Types of Errors:
+
+Besides error constructors, Javascript also has other core Error constructors.
+
+- [`AggregateError`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/AggregateError)
+- [`EvalError`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/EvalError)
+- [`InternalError`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/InternalError)
+- [`RangeError`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RangeError)
+- [`ReferenceError`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError)
+- [`SyntaxError`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError)
+
+## Example
+
+```js
+try {
+  willGiveErrorSometime();
+} catch (error) {
+  if (error instanceof RangeError) {
+    rangeErrorHandler(error);
+  } else if (error instanceof ReferenceError) {
+    referenceErrorHandle(error);
+  } else {
+    errorHandler(error);
+  }
+}
+```
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error'>Error Object - MDN</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling'>Control flow & Error handling - MDN</BadgeLink>