added comments to ls

Author: Alex-Jamshidi

implement-shell-tools/cat/cat.js

@@ -47,15 +47,25 @@ function executeFlags() {
 }
 
 function bFlag() {
-  return allFilesContents.map((fileContent) => {
+  const resultFiles = [];
+
+  for (const fileContent of allFilesContents) {
+    const formattedLines = [];
     let lineNumber = 1;
-    return fileContent.map((line, index) => {
-      if (line == "") {
-        return `${line}`;
+
+    for (const line of fileContent) {
+      if (line === "") {
+        formattedLines.push(line);
+      } else {
+        const formattedLine = `${String(lineNumber++).padStart(6, " ")} ${line}`;
+        formattedLines.push(formattedLine);
       }
-      return `${String(lineNumber++).padStart(6, " ")} ${line}`;
-    });
-  });
+    }
+
+    resultFiles.push(formattedLines);
+  }
+
+  return resultFiles;
 }
 
 function nFlag() {

implement-shell-tools/ls/ls.js

@@ -26,14 +26,8 @@ function ls(args) {
   print(populateOutput(currentWorkingDirectory, fsItems, dirArgs, fileArgs));
 }
 
-function getFsItems(userArgs) {
-  return userArgs.filter((arg) => !arg.startsWith("-"));
-}
-
-function getCurrentWorkingDirectory(args) {
-  const index = args[1].lastIndexOf("/");
-  return args[1].slice(0, index);
-}
+//
+// ===== Flag Handling =====
 
 function getFlags(userArgs) {
   return userArgs
@@ -60,10 +54,26 @@ function Flag1() {
   printInList = true;
 }
 
+function makeList(outputString) {
+  return outputString.replaceAll("\t", "\n").replaceAll("\n\n", "\n");
+}
+
 function Flaga() {
   showAll = true;
 }
 
+//
+// ===== Extracting data from arguments =====
+
+function getCurrentWorkingDirectory(args) {
+  const index = args[1].lastIndexOf("/");
+  return args[1].slice(0, index);
+}
+
+function getFsItems(userArgs) {
+  return userArgs.filter((arg) => !arg.startsWith("-"));
+}
+
 function checkArgsLength(fsItems) {
   if (fsItems.length == 0) fsItems.push(".");
   return fsItems;
@@ -79,6 +89,9 @@ function getFileArgs(currentWorkingDirectory, fsItems) {
   return fileArgs;
 }
 
+//
+// ===== Outputting Data =====
+
 function populateOutput(currentWorkingDirectory, fsItems, dirArgs, fileArgs) {
   let outputString = "";
   if (fsItems.length == 1) {
@@ -126,7 +139,3 @@ function print(outputString) {
   if (printInList) output = makeList(output);
   console.log(output.trimEnd());
 }
-
-function makeList(outputString) {
-  return outputString.replaceAll("\t", "\n").replaceAll("\n\n", "\n");
-}