diff --git a/src/simulator/src/minimap.js b/src/simulator/src/minimap.ts
similarity index 73%
rename from src/simulator/src/minimap.js
rename to src/simulator/src/minimap.ts
index 842869840..e801eeb11 100644
--- a/src/simulator/src/minimap.js
+++ b/src/simulator/src/minimap.ts
@@ -2,6 +2,13 @@ import { simulationArea } from './simulationArea'
 import { colors } from './themer/themer'
 import { layoutModeGet } from './layoutMode'
 import { updateOrder } from './metadata'
+import { MiniMapAreaType } from './types/minimap.types'
+
+declare const lightMode: boolean
+declare const globalScope: any
+declare const width: number
+declare const height: number
+declare const $: JQueryStatic
 
 /**
  * @type {Object} miniMapArea
@@ -15,12 +22,24 @@ import { updateOrder } from './metadata'
  * @property {function} clear - used to clear minimap
  * @category minimap
  */
-var miniMapArea
-export default miniMapArea = {
-    canvas: document.getElementById('miniMapArea'),
+const miniMapArea: MiniMapAreaType = {
+    canvas: document.getElementById('miniMapArea') as HTMLCanvasElement | null,
+    ctx: null,
+    pageHeight: 0,
+    pageWidth: 0,
+    pageY: 0,
+    pageX: 0,
+    minX: 0,
+    maxX: 0,
+    minY: 0,
+    maxY: 0,
+
     setup() {
         if (lightMode) return
-        this.canvas = document.getElementById('miniMapArea')
+        this.canvas = document.getElementById(
+            'miniMapArea'
+        ) as HTMLCanvasElement | null
+        if (!this.canvas) return
         this.pageHeight = height // Math.round(((parseInt($("#simulationArea").height())))/ratio)*ratio-50; // -50 for tool bar? Check again
         this.pageWidth = width // Math.round(((parseInt($("#simulationArea").width())))/ratio)*ratio;
         this.pageY = this.pageHeight - globalScope.oy
@@ -59,10 +78,10 @@ export default miniMapArea = {
             this.maxX = this.pageX / globalScope.scale
         }
 
-        var h = this.maxY - this.minY
-        var w = this.maxX - this.minX
+        const h = this.maxY - this.minY
+        const w = this.maxX - this.minX
 
-        var ratio = Math.min(250 / h, 250 / w)
+        const ratio = Math.min(250 / h, 250 / w)
         if (h > w) {
             this.canvas.height = 250.0
             this.canvas.width = (250.0 * w) / h
@@ -70,26 +89,35 @@ export default miniMapArea = {
             this.canvas.width = 250.0
             this.canvas.height = (250.0 * h) / w
         }
-
         this.canvas.height += 5
         this.canvas.width += 5
 
-        document.getElementById('miniMap').style.height = this.canvas.height
-        document.getElementById('miniMap').style.width = this.canvas.width
+        document.getElementById('miniMap')!.style.height = String(
+            this.canvas.height
+        )
+        document.getElementById('miniMap')!.style.width = String(
+            this.canvas.width
+        )
+
         this.ctx = this.canvas.getContext('2d')
+        // this.context = this.ctx || undefined
+        if (!this.ctx) return
         this.play(ratio)
     },
 
-    play(ratio) {
+    play(ratio: number) {
         if (lightMode || layoutModeGet()) return
+        if (!this.ctx) return
 
         this.ctx.fillStyle = '#bbb'
-        this.ctx.rect(0, 0, this.canvas.width, this.canvas.height)
+        this.ctx.beginPath()
+        this.ctx.rect(0, 0, this.canvas!.width, this.canvas!.height)
         this.ctx.fill()
         this.resolve(ratio)
     },
-    resolve(ratio) {
-        if (lightMode) return
+
+    resolve(ratio: number) {
+        if (lightMode || !this.ctx) return
 
         this.ctx.fillStyle = '#ddd'
         this.ctx.beginPath()
@@ -108,15 +136,15 @@ export default miniMapArea = {
         this.ctx.fill()
 
         //  to show the area of current canvas
-        var lst = updateOrder
+        const lst = updateOrder
         const miniFill = colors['mini_fill']
         const miniStroke = colors['mini_stroke']
 
         this.ctx.strokeStyle = miniStroke
         this.ctx.fillStyle = miniFill
-        for (var i = 0; i < lst.length; i++) {
+        for (let i = 0; i < lst.length; i++) {
             if (lst[i] === 'wires') {
-                for (var j = 0; j < globalScope[lst[i]].length; j++) {
+                for (let j = 0; j < globalScope[lst[i]].length; j++) {
                     this.ctx.beginPath()
                     this.ctx.moveTo(
                         2.5 +
@@ -138,7 +166,7 @@ export default miniMapArea = {
                 }
             } else if (lst[i] != 'nodes') {
                 // Don't include SquareRGBLed here; it has correct size.
-                var ledY = 0
+                let ledY = 0
                 if (
                     lst[i] == 'DigitalLed' ||
                     lst[i] == 'VariableLed' ||
@@ -147,11 +175,9 @@ export default miniMapArea = {
                     ledY = 20
                 }
 
-                for (var j = 0; j < globalScope[lst[i]].length; j++) {
-                    var xx = globalScope[lst[i]][j].x - simulationArea.minWidth
-                    var yy = globalScope[lst[i]][j].y - simulationArea.minHeight
+                for (let j = 0; j < globalScope[lst[i]].length; j++) {
+                    const obj = globalScope[lst[i]][j]
                     this.ctx.beginPath()
-                    var obj = globalScope[lst[i]][j]
                     this.ctx.rect(
                         2.5 + (obj.x - obj.leftDimensionX - this.minX) * ratio,
                         2.5 + (obj.y - obj.upDimensionY - this.minY) * ratio,
@@ -165,17 +191,22 @@ export default miniMapArea = {
             }
         }
     },
+
     clear() {
         if (lightMode) return
         $('#miniMapArea').css('z-index', '-1')
-        this.context.clearRect(0, 0, this.canvas.width, this.canvas.height)
+        const ctx = this.ctx
+        const canvas = this.canvas
+        if (!ctx || !canvas) return
+        ctx.clearRect(0, 0, canvas.width, canvas.height)
     },
 }
-var lastMiniMapShown
-export function updatelastMinimapShown() {
+
+let lastMiniMapShown: number | undefined
+export function updatelastMinimapShown(): void {
     lastMiniMapShown = new Date().getTime()
 }
-export function removeMiniMap() {
+export function removeMiniMap(): void {
     if (lightMode) return
 
     if (
@@ -183,12 +214,16 @@ export function removeMiniMap() {
         simulationArea.mouseDown
     )
         return
-    if (lastMiniMapShown + 2000 >= new Date().getTime()) {
+
+    if ((lastMiniMapShown as number) + 2000 >= new Date().getTime()) {
         setTimeout(
             removeMiniMap,
-            lastMiniMapShown + 2000 - new Date().getTime()
+            (lastMiniMapShown as number) + 2000 - new Date().getTime()
         )
         return
     }
+
     $('#miniMap').fadeOut('fast')
 }
+
+export default miniMapArea
diff --git a/src/simulator/src/types/minimap.types.ts b/src/simulator/src/types/minimap.types.ts
new file mode 100644
index 000000000..9ced02987
--- /dev/null
+++ b/src/simulator/src/types/minimap.types.ts
@@ -0,0 +1,16 @@
+export interface MiniMapAreaType {
+    canvas: HTMLCanvasElement | null
+    ctx: CanvasRenderingContext2D | null
+    pageHeight: number
+    pageWidth: number
+    pageY: number
+    pageX: number
+    minX: number
+    maxX: number
+    minY: number
+    maxY: number
+    setup(): void
+    play(ratio: number): void
+    resolve(ratio: number): void
+    clear(): void
+}