refactored ls implementation in a single file

Author: RomanSanaye

implement-shell-tools/ls/ls-1-a.js

@@ -0,0 +1,40 @@
+const fs = require("fs");
+
+const args = process.argv.slice(2);
+
+let flags = [];
+let paths = [];
+
+// Check arguments: separate flags and paths
+args.forEach((arg) => {
+  if (arg.startsWith("-")) {
+    flags.push(arg);
+  } else {
+    paths.push(arg);
+  }
+});
+
+// If no path is provided, use the current directory
+if (paths.length === 0) {
+  paths = ["."];
+}
+
+paths.forEach((path) => {
+  if (fs.statSync(path).isFile()) {
+    console.log(path);
+  } else {
+    let contents = fs.readdirSync(path);
+
+    // Hide hidden files unless -a exists
+    if (!flags.includes("-a")) {
+      contents = contents.filter((file) => !file.startsWith("."));
+    }
+
+    // Check -1 flag
+    if (flags.includes("-1")) {
+      console.log(contents.join("\n"));
+    } else {
+      console.log(contents.join(" "));
+    }
+  }
+});