diff --git a/www/manager6/Parser.js b/www/manager6/Parser.js
index 4a2eac2ca..a7d7fe01c 100644
--- a/www/manager6/Parser.js
+++ b/www/manager6/Parser.js
@@ -595,7 +595,7 @@ Ext.define('PVE.Parser', {
 	    return undefined;
 	} else if (value === 'x!oath') {
 	    return 'totp';
-	} else if (!!(match = value.match(/^x!(.+)$/))) {
+	} else if (match = value.match(/^x!(.+)$/)) {
 	    return match[1];
 	} else {
 	    return 1;
diff --git a/www/manager6/dc/RoleView.js b/www/manager6/dc/RoleView.js
index d022d1215..933e58bf5 100644
--- a/www/manager6/dc/RoleView.js
+++ b/www/manager6/dc/RoleView.js
@@ -44,7 +44,7 @@ Ext.define('PVE.dc.RoleView', {
 		return;
 	    }
 
-	    if (!!rec.data.special) {
+	    if (rec.data.special) {
 		return;
 	    }
 
diff --git a/www/manager6/lxc/Network.js b/www/manager6/lxc/Network.js
index 81f9c0769..9fe479f84 100644
--- a/www/manager6/lxc/Network.js
+++ b/www/manager6/lxc/Network.js
@@ -191,7 +191,7 @@ Ext.define('PVE.lxc.NetworkInputPanel', {
 			listeners: {
 			    change: function(cb, value) {
 				me.down('field[name=ip]').setEmptyText(
-				    !!value ? Proxmox.Utils.NoneText : "",
+				    value ? Proxmox.Utils.NoneText : "",
 				);
 				me.down('field[name=ip]').setDisabled(!value);
 				me.down('field[name=gw]').setDisabled(!value);
@@ -253,7 +253,7 @@ Ext.define('PVE.lxc.NetworkInputPanel', {
 			listeners: {
 			    change: function(cb, value) {
 				me.down('field[name=ip6]').setEmptyText(
-				    !!value ? Proxmox.Utils.NoneText : "",
+				    value ? Proxmox.Utils.NoneText : "",
 				);
 				me.down('field[name=ip6]').setDisabled(!value);
 				me.down('field[name=gw6]').setDisabled(!value);
diff --git a/www/manager6/qemu/PCIEdit.js b/www/manager6/qemu/PCIEdit.js
index 189bf2a8b..942e8aedd 100644
--- a/www/manager6/qemu/PCIEdit.js
+++ b/www/manager6/qemu/PCIEdit.js
@@ -169,7 +169,7 @@ Ext.define('PVE.qemu.PCIInputPanel', {
 		listeners: {
 		    change: function(field, value) {
 			var mf = me.down('field[name=multifunction]');
-			if (!!value) {
+			if (value) {
 			    mf.setValue(false);
 			}
 			mf.setDisabled(!!value);
diff --git a/www/manager6/tree/ResourceTree.js b/www/manager6/tree/ResourceTree.js
index 0b76ae1a9..004bb4ce4 100644
--- a/www/manager6/tree/ResourceTree.js
+++ b/www/manager6/tree/ResourceTree.js
@@ -375,8 +375,8 @@ Ext.define('PVE.tree.ResourceTree', {
 	    // select parent node is selection vanished
 	    if (lastsel && !rootnode.findChild('id', lastsel.data.id, true)) {
 		lastsel = rootnode;
-		while (!!(p = parents.shift())) {
-		    if (!!(tmp = rootnode.findChild('id', p.data.id, true))) {
+		while (p = parents.shift()) {
+		    if (tmp = rootnode.findChild('id', p.data.id, true)) {
 			lastsel = tmp;
 			break;
 		    }
@@ -461,7 +461,7 @@ Ext.define('PVE.tree.ResourceTree', {
 		if (!sm.isSelected(node)) {
 		    sm.select(node);
 		    var cn = node;
-		    while (!!(cn = cn.parentNode)) {
+		    while (cn = cn.parentNode) {
 			if (!cn.isExpanded()) {
 			    cn.expand();
 			}