diff --git a/src/app/tabs/debugger/debuggerUI/VmDebugger.js b/src/app/tabs/debugger/debuggerUI/VmDebugger.js
index 2260882115..c418cc9f77 100644
--- a/src/app/tabs/debugger/debuggerUI/VmDebugger.js
+++ b/src/app/tabs/debugger/debuggerUI/VmDebugger.js
@@ -123,8 +123,8 @@ function VmDebugger (vmDebuggerLogic) {
 }
 
 VmDebugger.prototype.renderHead = function () {
-  var headView = yo`
-    <div id='vmheadView' class="${css.vmheadView} container">
+  const headView = yo`
+    <div id="vmheadView" class="${css.vmheadView} container">
       <div class="row" >
         <div class="${css.asmCode} column">${this.asmCode.render()}</div>
         <div class="${css.stepDetail} column">${this.stepDetail.render()}</div>
@@ -143,8 +143,8 @@ VmDebugger.prototype.remove = function () {
 }
 
 VmDebugger.prototype.render = function () {
-  var view = yo`
-    <div id='vmdebugger'>
+  const view = yo`
+    <div id="vmdebugger">
       <div>
         ${this.solidityLocals.render()}
         ${this.solidityState.render()}
diff --git a/src/app/tabs/debugger/debuggerUI/vmDebugger/MemoryPanel.js b/src/app/tabs/debugger/debuggerUI/vmDebugger/MemoryPanel.js
index 2423890ba3..e526285076 100644
--- a/src/app/tabs/debugger/debuggerUI/vmDebugger/MemoryPanel.js
+++ b/src/app/tabs/debugger/debuggerUI/vmDebugger/MemoryPanel.js
@@ -15,7 +15,7 @@ MemoryPanel.prototype.update = function (calldata) {
 }
 
 MemoryPanel.prototype.render = function () {
-  return yo`<div id='memorypanel' class='text-monospace small'>${this.basicPanel.render()}</div>`
+  return yo`<div id="memorypanel" class="text-monospace small">${this.basicPanel.render()}</div>`
 }
 
 module.exports = MemoryPanel
diff --git a/src/app/tabs/debugger/debuggerUI/vmDebugger/StackPanel.js b/src/app/tabs/debugger/debuggerUI/vmDebugger/StackPanel.js
index bc1ec20bd6..5dadc3a75b 100644
--- a/src/app/tabs/debugger/debuggerUI/vmDebugger/StackPanel.js
+++ b/src/app/tabs/debugger/debuggerUI/vmDebugger/StackPanel.js
@@ -11,7 +11,7 @@ StackPanel.prototype.update = function (calldata) {
 }
 
 StackPanel.prototype.render = function () {
-  return yo`<div id='stackpanel' class='text-monospace small' >${this.basicPanel.render()}</div>`
+  return yo`<div id="stackpanel" class="text-monospace small">${this.basicPanel.render()}</div>`
 }
 
 module.exports = StackPanel
diff --git a/src/app/tabs/debugger/debuggerUI/vmDebugger/utils/SolidityTypeFormatter.js b/src/app/tabs/debugger/debuggerUI/vmDebugger/utils/SolidityTypeFormatter.js
index cce01ed3a7..936718a673 100644
--- a/src/app/tabs/debugger/debuggerUI/vmDebugger/utils/SolidityTypeFormatter.js
+++ b/src/app/tabs/debugger/debuggerUI/vmDebugger/utils/SolidityTypeFormatter.js
@@ -7,12 +7,12 @@ module.exports = {
 }
 
 function formatSelf (key, data) {
-  var style = fontColor(data)
-  var keyStyle = data.isProperty ? 'color: var(--info)' : ''
+  const style = fontColor(data)
+  const keyStyle = data.isProperty ? 'color: var(--info)' : ''
   if (data.type === 'string') {
     data.self = JSON.stringify(data.self)
   }
-  return yo `<label style='${keyStyle};white-space:pre-wrap;'> ${' ' + key}:<label style=${style}>${' ' + data.self}</label><label style='font-style:italic'> ${data.isProperty || !data.type ? '' : ' ' + data.type}</label></label>`
+  return yo`<label style=${keyStyle}>${key}: <label style=${style}>${data.self}</label><label style='font-style:italic'> ${data.isProperty || !data.type ? '' : ' ' + data.type}</label></label>`
 }
 
 function extractData (item, parent, key) {
@@ -55,7 +55,7 @@ function extractData (item, parent, key) {
 }
 
 function fontColor (data) {
-  var color = 'var(--primary)'
+  let color = 'var(--primary)'
   if (data.isArray || data.isStruct || data.isMapping) {
     color = 'var(--info)'
   } else if (