Added comments

scripts/apis/datamuse.js

@@ -1,13 +1,17 @@
 function getRelatedWords(word, topics, firstLetter, lastLetter, limit, frequencyLimit, minLenght) {
     return new Promise((resolve) => {
         let url = "https://api.datamuse.com/words?ml=" + word + "&max=" + limit + "&md=df";
+
+        //Add topics to the api input if they are specified
         if(topics !== null && topics.length > 0) {
             let topicsString = topics[0];
             for (let i = 1; i < Math.max(topics.length, 5); i++) {
                 topicsString = topicsString + "," + topics[i];
             }
             url = url + "&topics=" + topicsString;
         }
+
+        //Get the api response
         fetch("https://api.datamuse.com/words?ml=" + word + "&max=" + limit + "&md=df").then(response => {
             return response.json()
         }).then(data => {

scripts/generator.js

@@ -59,8 +59,11 @@ function checkWords(i) {
 }
 
 async function addResultsForKeyword(keywordsRaw) {
-    const keywords = keywordsRaw.split(/[\s,]+/);;
+    //Split the raw input into words. The words should be separated by commas
+    const keywords = keywordsRaw.split(/[\s,]+/);
     console.log(keywords);
+
+    // Generate related words both with and without the other words set as topics
     for(let i = 0; i < keywords.length; i++) {
         await getRelatedWords(
             keywords[i],
@@ -79,6 +82,7 @@ async function addResultsForKeyword(keywordsRaw) {
             globalWords = globalWords.concat(words);
         });
     }
+
     console.log(globalWords);
     const seen = {};
     globalWords = globalWords.filter(function(item) {