Replacing var with let or const.

js/jsmapcss/eval.pegjs

@@ -30,7 +30,7 @@ Expression
 
 Operand
   = head:Term tail:(_ ("." / "+" / "-") _ Term)* {
-      var result = head, i;
+      let result = head, i;
 
       for (i = 0; i < tail.length; i++) {
         if (tail[i][1] === ".") { result = ""+(result + tail[i][3]); }
@@ -43,7 +43,7 @@ Operand
 
 Term
   = head:Factor tail:(_ ("*" / "/") _ Factor)* {
-      var result = head, i;
+      let result = head, i;
 
       for (i = 0; i < tail.length; i++) {
         if (tail[i][1] === "*") { result = ""+(result * tail[i][3]); }

js/locationfilter.js

@@ -13,7 +13,7 @@
  * Version: 0.1
  */
 L.LatLngBounds.prototype.modify = function (map, amount) {
-  var sw = this.getSouthWest(),
+  let sw = this.getSouthWest(),
     ne = this.getNorthEast(),
     swPoint = map.latLngToLayerPoint(sw),
     nePoint = map.latLngToLayerPoint(ne);
@@ -71,22 +71,22 @@ L.LocationFilter = L.Control.extend({
   /* Draw a rectangle */
   _drawRectangle: function (bounds, options) {
     options = options || {};
-    var defaultOptions = {
+    const defaultOptions = {
       stroke: false,
       fill: true,
       fillColor: "black",
       fillOpacity: 0.3,
       clickable: false
     };
     options = L.Util.extend(defaultOptions, options);
-    var rect = new L.Rectangle(bounds, options);
+    const rect = new L.Rectangle(bounds, options);
     rect.addTo(this._layer);
     return rect;
   },
 
   /* Draw a draggable marker */
   _drawImageMarker: function (point, options) {
-    var marker = new L.Marker(point, {
+    const marker = new L.Marker(point, {
       icon: new L.DivIcon({
         iconAnchor: options.anchor,
         iconSize: options.size,
@@ -102,14 +102,14 @@ L.LocationFilter = L.Control.extend({
        filter corners and redraws the filter when the move marker is
        moved */
   _drawMoveMarker: function (point) {
-    var that = this;
+    const that = this;
     this._moveMarker = this._drawImageMarker(point, {
       className: "location-filter move-marker",
       anchor: [-10, -10],
       size: [13, 13]
     });
     this._moveMarker.on("drag", function (e) {
-      var markerPos = that._moveMarker.getLatLng(),
+      const markerPos = that._moveMarker.getLatLng(),
         latDelta = markerPos.lat - that._nw.lat,
         lngDelta = markerPos.lng - that._nw.lng;
       that._nw = new L.LatLng(
@@ -151,9 +151,9 @@ L.LocationFilter = L.Control.extend({
        given in options.moveAlong to match the position of the moved
        marker. Update filter corners and redraw the filter */
   _setupResizeMarkerTracking: function (marker, options) {
-    var that = this;
+    const that = this;
     marker.on("drag", function (e) {
-      var curPosition = marker.getLatLng(),
+      const curPosition = marker.getLatLng(),
         latMarker = options.moveAlong.lat,
         lngMarker = options.moveAlong.lng;
       // Move follower markers when this marker is moved
@@ -164,7 +164,7 @@ L.LocationFilter = L.Control.extend({
         new L.LatLng(lngMarker.getLatLng().lat, curPosition.lng, true)
       );
       // Sort marker positions in nw, ne, sw, se order
-      var corners = [
+      const corners = [
         that._nwMarker.getLatLng(),
         that._neMarker.getLatLng(),
         that._swMarker.getLatLng(),
@@ -187,7 +187,7 @@ L.LocationFilter = L.Control.extend({
   /* Emit a change event whenever dragend is triggered on the
        given marker */
   _setupDragendListener: function (marker) {
-    var that = this;
+    const that = this;
     marker.on("dragend", function (e) {
       // that.fire("change", {bounds: that.getBounds()});
     });
@@ -196,7 +196,7 @@ L.LocationFilter = L.Control.extend({
   /* Create bounds for the mask rectangles and the location
        filter rectangle */
   _calculateBounds: function () {
-    var mapBounds = this._map.getBounds(),
+    const mapBounds = this._map.getBounds(),
       outerBounds = new L.LatLngBounds(
         new L.LatLng(
           mapBounds.getSouthWest().lat - 0.1,
@@ -326,7 +326,7 @@ L.LocationFilter = L.Control.extend({
     }
 
     // Initialize corners
-    var bounds;
+    let bounds;
     if (this._sw && this._ne) {
       bounds = new L.LatLngBounds(this._sw, this._ne);
     } else if (this.options.bounds) {
@@ -345,7 +345,7 @@ L.LocationFilter = L.Control.extend({
     this._draw();
 
     // Set up map move event listener
-    var that = this;
+    const that = this;
     this._moveHandler = function () {
       that._draw();
     };
@@ -355,7 +355,7 @@ L.LocationFilter = L.Control.extend({
     this._layer.addTo(this._map);
 
     // Zoom out the map if necessary
-    var mapBounds = this._map.getBounds();
+    const mapBounds = this._map.getBounds();
     bounds = new L.LatLngBounds(this._sw, this._ne).modify(this._map, 10);
     if (
       !mapBounds.contains(bounds.getSouthWest()) ||