and in some original code

code/reverseSentence.js

@@ -40,3 +40,31 @@ function reverse(sentence) {
 function reverse(sentence) {
     return sentence.split(' ').reverse().join(' ');
 }
+
+// original code fixed by GitHub Copilot
+
+function reverseSentence(sentence) {
+    // lowercase the first letter of the sentence if it's not an "I"
+    if (sentence.charAt(0) !== "I") {
+        sentence = sentence.charAt(0).toLowerCase() + sentence.slice(1);
+    }
+
+    // split the sentence
+    const sentenceArray = sentence.split(" ");
+
+    // split the punctuation and handle null case
+    const punctuationArray = sentence.match(/[.,:;!?]/g) || [];
+    // Remove punctuation from the sentence
+    sentence = sentence.replace(/[.,:;!?]/g, "");
+
+    // reverse the sentence array and join it together
+    const reversedSentenceArray = sentenceArray.reverse();
+
+    // uppercase the first letter of the reversed sentence
+    reversedSentenceArray[0] = reversedSentenceArray[0].charAt(0).toUpperCase() + reversedSentenceArray[0].slice(1);
+
+    // join the reversed sentence and add punctuation again
+    const reversedSentence = reversedSentenceArray.join(" ") + punctuationArray.join("");
+
+    return reversedSentence;
+

code/reverseSentenceOriginal.js

@@ -0,0 +1,27 @@
+// reverse a sentence
+// the start of the sentence must be capital
+// no other part of the sentence should be capital unless it's a name or place
+// the end of the sentence should contain the punctuation marks/s
+
+function reverseSentence(sentence) {
+
+    // first, let's make the first letter of the sentence lower case if it's not an "I"
+    if (sentence.charAt(0) !== "I") {
+        sentence = sentence.charAt(0).toLowerCase() + sentence.slice(1);
+    }
+
+    // next, let's split the sentence into an array of words
+    const words = sentence.split(" ");
+
+    // then, let's take out the punctuation marks from the sentence
+    const punctuation = sentence.match(/[.,\/#!$%\^&\*;:{}=\-_`~()]/g);
+    // now let's remove the punctuation marks from the sentence
+    sentence = sentence.replace(/[.,\/#!$%\^&\*;:{}=\-_`~()]/g,"");
+
+    // let's reverse the sentence and join it back together
+    const reversedSentence = words.reverse().join(" ");
+
+    // finally, let's make the first letter of the sentence capital and add the punctuation marks back
+    return reversedSentence.charAt(0).toUpperCase() + reversedSentence.slice(1) + punctuationArray.join("");
+
+}