Aw4751 eslint fixes

projects/common-map/src/fm-map/services/device-orientation.service.ts

@@ -8,25 +8,25 @@ export class DeviceOrientationService {
   compassHeading(alpha, beta, gamma):number {
 
     // Convert degrees to radians
-    var alphaRad = alpha * (Math.PI / 180);
-    var betaRad = beta * (Math.PI / 180);
-    var gammaRad = gamma * (Math.PI / 180);
+    const alphaRad = alpha * (Math.PI / 180);
+    const betaRad = beta * (Math.PI / 180);
+    const gammaRad = gamma * (Math.PI / 180);
   
     // Calculate equation components
-    var cA = Math.cos(alphaRad);
-    var sA = Math.sin(alphaRad);
-    var cB = Math.cos(betaRad);
-    var sB = Math.sin(betaRad);
-    var cG = Math.cos(gammaRad);
-    var sG = Math.sin(gammaRad);
+    const cA = Math.cos(alphaRad);
+    const sA = Math.sin(alphaRad);
+    const cB = Math.cos(betaRad);
+    const sB = Math.sin(betaRad);
+    const cG = Math.cos(gammaRad);
+    const sG = Math.sin(gammaRad);
   
     // Calculate A, B, C rotation components
-    var rA = - cA * sG - sA * sB * cG;
-    var rB = - sA * sG + cA * sB * cG;
-    var rC = - cB * cG;
+    const rA = - cA * sG - sA * sB * cG;
+    const rB = - sA * sG + cA * sB * cG;
+    const rC = - cB * cG;
   
     // Calculate compass heading
-    var compassHeading = Math.atan(rA / rB);
+    let compassHeading = Math.atan(rA / rB);
   
     // Convert from half unit circle to whole unit circle
     if(rB < 0) {
@@ -40,7 +40,7 @@ export class DeviceOrientationService {
   getCurrentCompassHeading(): Observable<number> {
     return Observable.create((observer: Observer<number>) => {  
         window.addEventListener("deviceorientation", (event:DeviceOrientationEvent)=>{
-          let heading = this.compassHeading(event.alpha,event.beta,event.gamma);
+          const heading = this.compassHeading(event.alpha,event.beta,event.gamma);
           if(!Number.isNaN(heading)) {
             observer.next(heading);
           }