add error-handling exercise

Author: A-O-Emmanuel

config.json

@@ -2720,6 +2720,14 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 2
+      },
+      {
+        "slug": "error-handling",
+        "name": "Error Handling",
+        "uuid": "de1c75f2-2461-4347-b5ca-b3cfaafe4d79",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 1
       }
     ]
   },

exercises/practice/error-handling/.docs/instructions.md

@@ -0,0 +1,8 @@
+# Instructions
+
+Implement various kinds of error handling and resource management.
+
+An important point of programming is how to handle errors and close resources even if errors occur.
+
+This exercise requires you to handle various errors.
+Because error handling is rather programming language specific you'll have to refer to the tests for your track to see what's exactly required.

exercises/practice/error-handling/.docs/introduction.md

@@ -0,0 +1,19 @@
+# Error Handling
+
+In this exercise, you will implement a function called `processString` that processes a given input string with proper error handling.
+
+You will learn how to:
+
+- Check input types and handle invalid inputs by throwing errors.
+- Throw custom errors for specific cases (e.g., empty strings).
+- Use a `try...finally` block to ensure certain code runs regardless of success or failure (such as cleanup or logging).
+- Return the uppercase version of the string if it is valid.
+
+Your function should:
+
+- Throw a `TypeError` if the input is not a string.
+- Throw an `Error` with the message `EmptyStringError` if the input string is empty.
+- Return the uppercase form of the input string if valid.
+- Use a `finally` block to log a cleanup message every time the function runs.
+
+This exercise is a great way to practice writing robust functions that can gracefully handle unexpected inputs while always executing necessary cleanup logic.

exercises/practice/error-handling/.gitignore

@@ -0,0 +1,5 @@
+/node_modules
+/bin/configlet
+/bin/configlet.exe
+/package-lock.json
+/yarn.lock

exercises/practice/error-handling/.meta/config.json

@@ -0,0 +1,15 @@
+{
+  "authors": ["Obinna Obi-Akwari"],
+  "files": {
+    "solution": [
+      "error-handling.js"
+    ],
+    "test": [
+      "error-handling.spec.js"
+    ],
+    "example": [
+      ".meta/proof.ci.js"
+    ]
+  },
+  "blurb": "Implement various kinds of error handling and resource management."
+}

exercises/practice/error-handling/.meta/proof.ci.js

@@ -0,0 +1 @@
+audit=false

exercises/practice/error-handling/.npmrc

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Exercism
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

exercises/practice/error-handling/LICENSE

@@ -0,0 +1,4 @@
+module.exports = {
+  presets: [['@exercism/babel-preset-javascript', { corejs: '3.40' }]],
+  plugins: [],
+};