code cleanup

lib/users.js

@@ -290,7 +290,7 @@ function users(callback) {
             }
             resolve(result);
           });
-        } catch (e) {
+        } catch {
           if (callback) {
             callback(result);
           }

lib/virtualbox.js

@@ -23,7 +23,7 @@ function vboxInfo(callback) {
   return new Promise((resolve) => {
     process.nextTick(() => {
       try {
-        exec(util.getVboxmanage() + ' list vms --long', function (error, stdout) {
+        exec(util.getVboxmanage() + ' list vms --long', (error, stdout) => {
           let parts = (os.EOL + stdout.toString()).split(os.EOL + 'Name:');
           parts.shift();
           parts.forEach((part) => {
@@ -38,7 +38,7 @@ function vboxInfo(callback) {
                 const offset = sinceDateObj.getTimezoneOffset();
                 runningSince = Math.round((Date.now() - Date.parse(sinceDateObj)) / 1000) + offset * 60;
               }
-            } catch (e) {
+            } catch {
               util.noop();
             }
             const stoppedSinceString = !running ? state.replace('powered off (since', '').replace(')', '').trim() : '';
@@ -49,7 +49,7 @@ function vboxInfo(callback) {
                 const offset = sinceDateObj.getTimezoneOffset();
                 stoppedSince = Math.round((Date.now() - Date.parse(sinceDateObj)) / 1000) + offset * 60;
               }
-            } catch (e) {
+            } catch {
               util.noop();
             }
             result.push({
@@ -97,7 +97,7 @@ function vboxInfo(callback) {
           }
           resolve(result);
         });
-      } catch (e) {
+      } catch {
         if (callback) {
           callback(result);
         }

lib/wifi.js

@@ -157,7 +157,7 @@ function ifaceListLinux() {
       });
     });
     return result;
-  } catch (e) {
+  } catch {
     try {
       const all = execSync('nmcli -t -f general,wifi-properties,wired-properties,interface-flags,capabilities,nsp device show 2>/dev/null', util.execOptsLinux).toString();
       const parts = all.split('\n\n');
@@ -179,7 +179,7 @@ function ifaceListLinux() {
         }
       });
       return result;
-    } catch (e) {
+    } catch {
       return [];
     }
   }
@@ -198,7 +198,7 @@ function nmiDeviceLinux(iface) {
       mac: util.getValue(lines, 'GENERAL.HWADDR').toLowerCase(),
       ssid: ssid !== '--' ? ssid : null
     };
-  } catch (e) {
+  } catch {
     return {};
   }
 }
@@ -216,7 +216,7 @@ function nmiConnectionLinux(ssid) {
       security: util.getValue(lines, '802-11-wireless-security.key-mgmt'),
       bssid: bssid !== '--' ? bssid : null
     };
-  } catch (e) {
+  } catch {
     return {};
   }
 }
@@ -237,7 +237,7 @@ function wpaConnectionLinux(iface) {
       channel: wifiChannelFromFrequencs(freq),
       bssid: util.getValue(lines, 'bssid', '=').toLowerCase()
     };
-  } catch (e) {
+  } catch {
     return {};
   }
 }
@@ -272,7 +272,7 @@ function getWifiNetworkListNmi() {
       });
     });
     return result;
-  } catch (e) {
+  } catch {
     return [];
   }
 }
@@ -363,7 +363,7 @@ function getWifiNetworkListIw(iface) {
       });
     }
     return result;
-  } catch (e) {
+  } catch {
     return -1;
   }
 }
@@ -404,7 +404,7 @@ function parseWifiDarwin(wifiStr) {
       });
     });
     return result;
-  } catch (e) {
+  } catch {
     return result;
   }
 }
@@ -460,7 +460,7 @@ function wifiNetworks(callback) {
               }
               resolve(result);
             }
-          } catch (e) {
+          } catch {
             if (callback) {
               callback(result);
             }