diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 55829ba..e9e6c88 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node-version: [10.x, 11.x, 12.x, 13.x, 14.x, 15.x, 16.x, 17.x, 18.x]
+        node-version: [10.x, 11.x, 12.x, 13.x, 14.x, 15.x, 16.x, 17.x, 18.x, 19.x]
         include:
           - os: macos-latest
             node-version: 14.x
diff --git a/lib/memory.js b/lib/memory.js
index bbf7e5c..be86156 100644
--- a/lib/memory.js
+++ b/lib/memory.js
@@ -245,13 +245,13 @@ function mem(callback) {
             if (!error) {
               let lines = stdout.toString().split('\n');
               if (lines.length > 0) {
-                let line = lines[0].replace(/,/g, '.').replace(/M/g, '');
-                line = line.trim().split('  ');
-                for (let i = 0; i < line.length; i++) {
-                  if (line[i].toLowerCase().indexOf('total') !== -1) { result.swaptotal = parseFloat(line[i].split('=')[1].trim()) * 1024 * 1024; }
-                  if (line[i].toLowerCase().indexOf('used') !== -1) { result.swapused = parseFloat(line[i].split('=')[1].trim()) * 1024 * 1024; }
-                  if (line[i].toLowerCase().indexOf('free') !== -1) { result.swapfree = parseFloat(line[i].split('=')[1].trim()) * 1024 * 1024; }
-                }
+                let firstline = lines[0].replace(/,/g, '.').replace(/M/g, '');
+                let lineArray = firstline.trim().split('  ');
+                lineArray.forEach(line => {
+                  if (line.toLowerCase().indexOf('total') !== -1) { result.swaptotal = parseFloat(line.split('=')[1].trim()) * 1024 * 1024; }
+                  if (line.toLowerCase().indexOf('used') !== -1) { result.swapused = parseFloat(line.split('=')[1].trim()) * 1024 * 1024; }
+                  if (line.toLowerCase().indexOf('free') !== -1) { result.swapfree = parseFloat(line.split('=')[1].trim()) * 1024 * 1024; }
+                });
               }
             }
             if (callback) { callback(result); }
diff --git a/lib/osinfo.js b/lib/osinfo.js
index e79cbcf..e784f3a 100644
--- a/lib/osinfo.js
+++ b/lib/osinfo.js
@@ -289,8 +289,6 @@ function osInfo(callback) {
           result.logofile = getLogoFile(result.distro);
           result.codename = 'macOS';
           result.codename = (result.release.indexOf('10.4') > -1 ? 'Mac OS X Tiger' : result.codename);
-          result.codename = (result.release.indexOf('10.4') > -1 ? 'Mac OS X Tiger' : result.codename);
-          result.codename = (result.release.indexOf('10.4') > -1 ? 'Mac OS X Tiger' : result.codename);
           result.codename = (result.release.indexOf('10.5') > -1 ? 'Mac OS X Leopard' : result.codename);
           result.codename = (result.release.indexOf('10.6') > -1 ? 'Mac OS X Snow Leopard' : result.codename);
           result.codename = (result.release.indexOf('10.7') > -1 ? 'Mac OS X Lion' : result.codename);
@@ -738,9 +736,9 @@ function versions(apps, callback) {
             if (_windows) {
               util.powerShell('Get-WmiObject Win32_Service | select caption | fl').then((stdout) => {
                 let serviceSections = stdout.split(/\n\s*\n/);
-                for (let i = 0; i < serviceSections.length; i++) {
-                  if (serviceSections[i].trim() !== '') {
-                    let lines = serviceSections[i].trim().split('\r\n');
+                serviceSections.forEach((item) => {
+                  if (item.trim() !== '') {
+                    let lines = item.trim().split('\r\n');
                     let srvCaption = util.getValue(lines, 'caption', ':', true).toLowerCase();
                     if (srvCaption.indexOf('postgresql') > -1) {
                       const parts = srvCaption.split(' server ');
@@ -749,7 +747,7 @@ function versions(apps, callback) {
                       }
                     }
                   }
-                }
+                });
                 functionProcessed();
               });
             } else {