code cleanup

- fixed typo
- removed duplication function declaration

Author: Niels V

app.js

@@ -7,7 +7,7 @@ import { foldChangeSets } from './folding';
 import { sendRequest } from './send-request';
 import { sendBundledRequest } from './bundle-requests';
 import {
-  filterChangesestOnPattern,
+  filterChangesetsOnPattern,
   tripleMatchesSpec,
   filterMatchesForOrigin,
   hostnameForEntry
@@ -60,33 +60,6 @@ app.post( '/', bodyParser.json({limit: '500mb'}), function( req, res ) {
   res.status(204).send();
 } );
 
-
-/**
- * Filters the change sets based on a specified pattern.
- *
- * @param {Array<Object>} changeSets - An array of change set objects,
- * each containing `insert` and `delete` properties.
- * @param {Object} entry - An object containing the matching criteria.
- * @param {Array} entry.match - The pattern used to filter the triples
- * in the `insert` and `delete` arrays.
- * @returns {Array<Object>} A new array of change set objects with
- * filtered `insert` and `delete` properties.
- */
-function filterChangesestOnPattern(changeSets, entry) {
-  const filteredChangesets = [];
-  for (const changeSet of changeSets) {
-    const { insert, delete: deleteSet } = changeSet;
-    const clonedChangeSet = {
-      ...changeSet,
-      insert: insert.filter((triple) => tripleMatchesSpec(triple, entry.match)),
-      delete: deleteSet.filter((triple) => tripleMatchesSpec(triple, entry.match))
-    };
-    filteredChangesets.push(clonedChangeSet);
-  };
-  return filteredChangesets;
-}
-
-
 async function informWatchers( changeSets, res, muCallIdTrail, muSessionId ){
   // Iterate over each unique match pattern
   for (const matchKey in groupedServices) {
@@ -95,7 +68,7 @@ async function informWatchers( changeSets, res, muCallIdTrail, muSessionId ){
     const sendMatchesOnly = firstEntry.options.sendMatchesOnly;
     let maybePatternFilteredChangesets = changeSets;
     if (sendMatchesOnly) {
-      maybePatternFilteredChangesets = filterChangesestOnPattern(changeSets, firstEntry);
+      maybePatternFilteredChangesets = filterChangesetsOnPattern(changeSets, firstEntry);
     }
 
     let allInserts = [];

matching.js

@@ -10,7 +10,7 @@
  * @returns {Array<Object>} A new array of change set objects with
  * filtered `insert` and `delete` properties.
  */
-export function filterChangesestOnPattern(changeSets, entry) {
+export function filterChangesetsOnPattern(changeSets, entry) {
   const filteredChangesets = [];
   for (const changeSet of changeSets) {
     const { insert, delete: deleteSet } = changeSet;