feat: Add set and get method in Response object to set and get header

Author: arpan404

src/core/error.ts

@@ -122,8 +122,8 @@ class JoorError extends Error {
               Error Code: ${this.errorCode}
               Message: ${this.message}
               ${marker.greenBright(
-                'For more information, visit:'
-              )} ${marker.bgGreenBright.whiteBright(docLink)}
+      'For more information, visit:'
+    )} ${marker.bgGreenBright.whiteBright(docLink)}
               `;
   }
 }
@@ -163,24 +163,22 @@ class Jrror extends JoorError {
       // Throws error code joor-e1 if errorData is not provided, e2 if code is not provided, e3 if message is not provided, e4 if type is not provided
       throw new Jrror({
         message: `Instance of Jrror has been created without passing required data. 
-              Missing: ${
-                !errorData
-                  ? 'errorData'
-                  : !errorData.code
-                    ? 'error code'
-                    : !errorData.message
-                      ? 'message'
-                      : 'type'
-              }`,
-        code: `jrror-${
-          !errorData
+              Missing: ${!errorData
+            ? 'errorData'
+            : !errorData.code
+              ? 'error code'
+              : !errorData.message
+                ? 'message'
+                : 'type'
+          }`,
+        code: `jrror-${!errorData
             ? 'e1'
             : !errorData.code
               ? 'e2'
               : !errorData.message
                 ? 'e3'
                 : 'e4'
-        }`,
+          }`,
         type: 'error',
       });
     }
@@ -193,5 +191,42 @@ class Jrror extends JoorError {
   }
 }
 
-export { JoorError };
+/**
+ * Handles errors by checking their type and calling the appropriate method.
+ * If the error is not an instance of Jrror or JoorError, it logs the error.
+ *
+ * @param {unknown} error - The error to handle.
+ * 
+ * Meant to reduce code duplication while handling errors in the codebase.
+ */
+function handleError(error: unknown): void {
+  if (error instanceof Jrror || error instanceof JoorError) {
+    error.handle();
+  } else {
+    logger.error(error);
+  }
+}
+
+/**
+* Implicitly asserts that a condition is true. If the condition is false, it throws an error with the provided message and documentation path.
+* Alternative to `assert(condition, message)` from the `node:assert` module.
+* 
+* For naming convention, `jssert` is used to avoid confusion with the `assert` function from the `node:assert` module.
+* 
+* @param {boolean} condition - The condition to assert.
+* @param {string} message - The error message to throw if the assertion fails.
+* @param {string} docsPath - The documentation path for the error.
+*/
+function jssert(condition: boolean, message: string, docsPath: string = "/assertion"): asserts condition {
+  if (!condition) {
+    throw new Jrror({
+      code: 'assertion-failed',
+      message,
+      type: 'error',
+      docsPath: docsPath,
+    })
+  }
+}
+
+export { JoorError, jssert, handleError };
 export default Jrror;