Try and fix issues that causes `exstats` not to be usable without `notify:{...}` defined.

modules/exstats.js

@@ -49,8 +49,26 @@ var menu = { ... };
 ExStats.appendMenuItems(menu, settings, saveSettingsFunction);
 E.showMenu(menu);
 
+'options' can also include:
+
+ options = {
+   paceLength : meters to measure pace over
+   notify: {
+    dist: {
+      increment: 0 to not notify on distance milestones, otherwise the number of meters to notify after, repeating
+    },
+    step: {
+      increment: 0 to not notify on step milestones, otherwise the number of steps to notify after, repeating
+    },
+    time: {
+      increment: 0 to not notify on time milestones, otherwise the number of milliseconds to notify after, repeating
+    }
+   }
+ }
+
+
 // Additionally, if your app makes use of the stat notifications, you can display additional menu
-// settings for configuring when to notify (note the added line in the example below)W
+// settings for configuring when to notify (note the added line in the example below)
 
 var menu = { ... };
 ExStats.appendMenuItems(menu, settings, saveSettingsFunction);
@@ -76,21 +94,7 @@ var state = {
   // BPM // beats per minute
   // BPMage // how many seconds was BPM set?
   // maxBPM // The highest BPM reached while active
-  // Notifies: 0 for disabled, otherwise how often to notify in meters, seconds, or steps
+  // notify: { }, // Notifies: 0 for disabled, otherwise how often to notify in meters, seconds, or steps
-  notify: {
-      dist: {
-        increment: 0,
-        next: 0,
-      },
-      steps: {
-        increment: 0,
-        next: 0,
-      },
-      time: {
-        increment: 0,
-        next: 0,
-      },
-    },
 };
 // list of active stats (indexed by ID)
 var stats = {};
@@ -209,27 +213,16 @@ exports.getList = function() {
   return l;
 };
 /** Instantiate the given list of statistic IDs (see comments at top)
- options = {
-   paceLength : meters to measure pace over
-   notify: {
-    dist: {
-      increment: 0 to not notify on distance milestones, otherwise the number of meters to notify after, repeating
-    },
-    step: {
-      increment: 0 to not notify on step milestones, otherwise the number of steps to notify after, repeating
-    },
-    time: {
-      increment: 0 to not notify on time milestones, otherwise the number of milliseconds to notify after, repeating
-    }
-   }
- }
 */
 exports.getStats = function(statIDs, options) {
   options = options||{};
   options.paceLength = options.paceLength||1000;
-  options.notify.dist.increment = (options.notify && options.notify.dist && options.notify.dist.increment)||0;
+  if (!options.notify) options.notify = {};
-  options.notify.step.increment = (options.notify && options.notify.step && options.notify.step.increment)||0;
+  ["dist","step","time"].forEach(stat => {
-  options.notify.time.increment = (options.notify && options.notify.time && options.notify.time.increment)||0;
+    if (!options.notify[stat]) options.notify[stat] = {};
+    options.notify[stat].increment = options.notify[stat].increment||0;
+  });
+  state.notify = options.notify;
   var needGPS,needHRM,needBaro;
   // ======================
   if (statIDs.includes("time")) {
@@ -361,15 +354,12 @@ exports.getStats = function(statIDs, options) {
     state.alt = undefined; // barometer altitude (meters)
     state.alti = 0; // integer ver of state.alt (to avoid repeated 'changed' notifications)
     state.notify = options.notify;
-    if (options.notify.dist.increment > 0) {
+    if (state.notify.dist.increment > 0)
-      state.notify.dist.next = state.distance + options.notify.dist.increment;
+      state.notify.dist.next = state.distance + state.notify.dist.increment;
-    }
+    if (state.notify.step.increment > 0)
-    if (options.notify.step.increment > 0) {
+      state.notify.step.next = state.startSteps + state.notify.step.increment;
-      state.notify.step.next = state.startSteps + options.notify.step.increment;
+    if (state.notify.time.increment > 0)
-    }
+      state.notify.time.next = state.startTime + state.notify.time.increment;
-    if (options.notify.time.increment > 0) {
-      state.notify.time.next = state.startTime + options.notify.time.increment;
-    }
   }
   if (!state.active) reset(); // we might already be active
   return {