Remove bogus null arguments from emitters. Fixes gh-561

docs/accelerometer-pan-tilt.md

@@ -50,7 +50,7 @@ board.on("ready", function() {
   // Center all servos
   (five.Servos()).center();
 
-  accel.on("acceleration", function(err, timestamp) {
+  accel.on("acceleration", function() {
     // console.log( "acceleration", this.axis );
 
     tilt.to(Math.abs(Math.ceil(170 * this.pitch.toFixed(2)) - 180));

docs/classic-controller.md

@@ -58,15 +58,15 @@ board.on("ready", function() {
   // Fired when the joystick detects a change in
   // axis position.
   //
-  nunchuk.joystick.left.on("change", function(err, event) {
+  nunchuk.joystick.left.on("change", function(event) {
     console.log(
       "Left joystick " + event.axis,
       event.target[event.axis],
       event.axis, event.direction
     );
   });
 
-  nunchuk.joystick.right.on("change", function(err, event) {
+  nunchuk.joystick.right.on("change", function(event) {
     console.log(
       "Right joystick " + event.axis,
       event.target[event.axis],
@@ -98,7 +98,7 @@ board.on("ready", function() {
 
   ["down", "up", "hold"].forEach(function(type) {
 
-    nunchuk.on(type, function(err, event) {
+    nunchuk.on(type, function(event) {
       console.log(
         event.target.which + " is " + type,
 

docs/ir-motion.md

@@ -39,19 +39,19 @@ board.on("ready", function() {
 
   // "calibrated" occurs once, at the beginning of a session,
   motion.on("calibrated", function() {
-    console.log("calibrated");
+    console.log("calibrated", Date.now());
   });
 
   // "motionstart" events are fired when the "calibrated"
   // proximal area is disrupted, generally by some form of movement
   motion.on("motionstart", function() {
-    console.log("motionstart");
+    console.log("motionstart", Date.now());
   });
 
   // "motionend" events are fired following a "motionstart" event
   // when no movement has occurred in X ms
   motion.on("motionend", function() {
-    console.log("motionend");
+    console.log("motionend", Date.now());
   });
 });
 

docs/ir-reflect-array.md

@@ -29,15 +29,15 @@ five.Board().on("ready", function() {
 
   // calibrate for two seconds
   eyes.calibrateUntil(function() { return !calibrating; });
-  setTimeout(function() { calibrating = false; }, 2000); 
+  setTimeout(function() { calibrating = false; }, 2000);
 
   eyes.enable();
 
   // "line"
   //
   // Fires continuously once calibrated
   //
-  eyes.on("line", function(err, line) {
+  eyes.on("line", function(line) {
     console.log("line: ", line);
   });
 });

docs/ir-reflect.md

@@ -39,7 +39,7 @@ five.Board().on("ready", function() {
   //
   // Fires continuously, every 66ms.
   //
-  ir.on("data", function(err, timestamp) {
+  ir.on("data", function() {
     console.log("data");
   });
 });

docs/joystick-motor-led.md

@@ -51,7 +51,7 @@ board.on("ready", function() {
 
   // Pushing the joystick to up position should start the motor,
   // releasing it will turn the motor off.
-  joystick.on("axismove", function(err, timestamp) {
+  joystick.on("axismove", function() {
 
     if (!motor.isOn && this.axis.y > 0.51) {
       motor.start();

docs/motor-3-pin.md

@@ -40,7 +40,7 @@ board.on("ready", function() {
         pwm: 9
         dir: 8
         cdir: 11
-        
+
       Motor B
         pwm: 10
         dir: 12
@@ -51,7 +51,7 @@ board.on("ready", function() {
         pwm: 6
         dir: 5
         cdir: 7
-        
+
       Motor B
         pwm: 4
         dir: 3
@@ -75,29 +75,29 @@ board.on("ready", function() {
     motor: motor
   });
 
-  motor.on("start", function(err, timestamp) {
-    console.log("start", timestamp);
+  motor.on("start", function() {
+    console.log("start", Date.now());
   });
 
-  motor.on("stop", function(err, timestamp) {
-    console.log("automated stop on timer", timestamp);
+  motor.on("stop", function() {
+    console.log("automated stop on timer", Date.now());
   });
 
-  motor.on("brake", function(err, timestamp) {
-    console.log("automated brake on timer", timestamp);
+  motor.on("brake", function() {
+    console.log("automated brake on timer", Date.now());
   });
 
-  motor.on("forward", function(err, timestamp) {
-    console.log("forward", timestamp);
+  motor.on("forward", function() {
+    console.log("forward", Date.now());
 
     // demonstrate switching to reverse after 5 seconds
     board.wait(5000, function() {
       motor.reverse(255);
     });
   });
 
-  motor.on("reverse", function(err, timestamp) {
-    console.log("reverse", timestamp);
+  motor.on("reverse", function() {
+    console.log("reverse", Date.now());
 
     // demonstrate braking after 5 seconds
     board.wait(5000, function() {

docs/motor-PCA9685.md

@@ -47,7 +47,7 @@ board.on("ready", function() {
 
   // "start" events fire when the motor is started.
   motor.on("start", function() {
-    console.log("start");
+    console.log("start", Date.now());
 
     // Demonstrate motor stop in 2 seconds
     board.wait(2000, function() {
@@ -57,7 +57,7 @@ board.on("ready", function() {
 
   // "stop" events fire when the motor is started.
   motor.on("stop", function() {
-    console.log("stop");
+    console.log("stop", Date.now());
   });
 
   // Motor API

docs/motor-brake.md

@@ -61,19 +61,19 @@ board.on("ready", function() {
   });
 
   motor.on("start", function() {
-    console.log("start");
+    console.log("start", Date.now());
   });
 
   motor.on("stop", function() {
-    console.log("automated stop on timer");
+    console.log("automated stop on timer", Date.now());
   });
 
   motor.on("brake", function() {
-    console.log("automated brake on timer");
+    console.log("automated brake on timer", Date.now());
   });
 
   motor.on("forward", function() {
-    console.log("forward");
+    console.log("forward", Date.now());
 
     // demonstrate switching to reverse after 5 seconds
     board.wait(5000, function() {
@@ -82,7 +82,7 @@ board.on("ready", function() {
   });
 
   motor.on("reverse", function() {
-    console.log("reverse");
+    console.log("reverse", Date.now());
 
     // demonstrate stopping after 5 seconds
     board.wait(5000, function() {

docs/motor-current.md

@@ -74,19 +74,19 @@ board.on("ready", function() {
   });
 
   motor.on("start", function() {
-    console.log("start");
+    console.log("start", Date.now());
   });
 
   motor.on("stop", function() {
-    console.log("automated stop on timer");
+    console.log("automated stop on timer", Date.now());
   });
 
   motor.on("brake", function() {
-    console.log("automated brake on timer");
+    console.log("automated brake on timer", Date.now());
   });
 
   motor.on("forward", function() {
-    console.log("forward");
+    console.log("forward", Date.now());
 
     // demonstrate switching to reverse after 5 seconds
     board.wait(5000, function() {
@@ -95,7 +95,7 @@ board.on("ready", function() {
   });
 
   motor.on("reverse", function() {
-    console.log("reverse");
+    console.log("reverse", Date.now());
 
     // demonstrate stopping after 5 seconds
     board.wait(5000, function() {

docs/motor-directional.md

@@ -92,15 +92,15 @@ board.on("ready", function() {
   });
 
   motor.on("start", function() {
-    console.log("start");
+    console.log("start", Date.now());
   });
 
   motor.on("stop", function() {
-    console.log("automated stop on timer");
+    console.log("automated stop on timer", Date.now());
   });
 
   motor.on("forward", function() {
-    console.log("forward");
+    console.log("forward", Date.now());
 
     // demonstrate switching to reverse after 5 seconds
     board.wait(5000, function() {
@@ -109,7 +109,7 @@ board.on("ready", function() {
   });
 
   motor.on("reverse", function() {
-    console.log("reverse");
+    console.log("reverse", Date.now());
 
     // demonstrate stopping after 5 seconds
     board.wait(5000, function() {

docs/motor-hbridge.md

@@ -65,15 +65,15 @@ board.on("ready", function() {
   });
 
   motor.on("start", function() {
-    console.log("start");
+    console.log("start", Date.now());
   });
 
   motor.on("stop", function() {
-    console.log("automated stop on timer");
+    console.log("automated stop on timer", Date.now());
   });
 
   motor.on("forward", function() {
-    console.log("forward");
+    console.log("forward", Date.now());
 
     // demonstrate switching to reverse after 5 seconds
     board.wait(5000, function() {
@@ -82,7 +82,7 @@ board.on("ready", function() {
   });
 
   motor.on("reverse", function() {
-    console.log("reverse");
+    console.log("reverse", Date.now());
 
     // demonstrate stopping after 5 seconds
     board.wait(5000, function() {

docs/motor.md

@@ -51,7 +51,7 @@ board.on("ready", function() {
 
   // "start" events fire when the motor is started.
   motor.on("start", function() {
-    console.log("start");
+    console.log("start", Date.now());
 
     // Demonstrate motor stop in 2 seconds
     board.wait(2000, function() {
@@ -61,7 +61,7 @@ board.on("ready", function() {
 
   // "stop" events fire when the motor is stopped.
   motor.on("stop", function() {
-    console.log("stop");
+    console.log("stop", Date.now());
   });
 
   // Motor API

docs/navigator.md

@@ -478,7 +478,7 @@ Navigator.prototype.pivot = function(which, time) {
   // distance reading has changed since the previous reading
   //
   // TODO: Avoid false positives?
-  ping.on("data", function(err) {
+  ping.on("data", function() {
     var release = 750,
       distance = Math.abs(this.inches),
       isReverse = false,

docs/nunchuk.md

@@ -55,7 +55,7 @@ board.on("ready", function() {
   // Fired when the joystick detects a change in
   // axis position.
   //
-  nunchuk.joystick.on("change", function(err, event) {
+  nunchuk.joystick.on("change", function(event) {
     console.log(
       "joystick " + event.axis,
       event.target[event.axis],
@@ -68,7 +68,7 @@ board.on("ready", function() {
   // Fired when the accelerometer detects a change in
   // axis position.
   //
-  nunchuk.accelerometer.on("change", function(err, event) {
+  nunchuk.accelerometer.on("change", function(event) {
     console.log(
       "accelerometer " + event.axis,
       event.target[event.axis],
@@ -100,7 +100,7 @@ board.on("ready", function() {
 
   ["down", "up", "hold"].forEach(function(type) {
 
-    nunchuk.on(type, function(err, event) {
+    nunchuk.on(type, function(event) {
       console.log(
         event.target.which + " is " + type,
 

docs/ping.md

@@ -49,7 +49,6 @@ board.on("ready", function() {
   // Calculated distance to object in centimeters
   //
 
-
   ping.on("change", function() {
     console.log("Object is " + this.in + " inches away");
   });

docs/servo-slider.md

@@ -29,32 +29,18 @@ node eg/servo-slider.js
 
 
 ```javascript
-var five = require("johnny-five"),
-  board, slider, servo, scalingRange;
-
-board = new five.Board();
+var five = require("johnny-five");
+var board = new five.Board();
 
 board.on("ready", function() {
 
-  scalingRange = [0, 170];
-
-  slider = new five.Sensor({
-    pin: "A0",
-    freq: 50
-  });
-
-  servo = new five.Servo({
-    pin: 10,
-    range: scalingRange
-  });
-
-
-  // The slider's value will be scaled to match the servo's movement range
-
-  slider.scale(scalingRange).on("slide", function(err, value) {
+  var slider = new five.Sensor("A0");
+  var tilt = new five.Servo(9);
 
-    servo.to(Math.floor(this.value));
+  slider.scale([0, 180]).on("slide", function() {
 
+    // The slider's value will be scaled to match the tilt servo range
+    tilt.to(this.value);
   });
 });