jgautier

// On Arduino Uno 2.2
// Using Examples > Firmata > StandardFirmata_2_2_forUNO_0_3

var firmata = require("./firmata/lib/firmata");
var board = new firmata.Board("/dev/tty.usbmodem621",function(){
  //code for board needs to go here
  console.log(board); // logs board object, board.pins is empty
  board.digitalWrite(2, 1); // generates error can't write value to undefined
});

jgautier

function letX(){
    var x = 0;
    if(true){
        let x = 1;
        //1
        console.log(x);
    }
    //0
    console.log(x);
}

jgautier

function Button(text){
  this.text = text;
}
Button.prototype.onClick=function(callback){
  //set fake x,y coordinates
  var x=0,y=0;
  callback.apply(this,[x,y]);
};
var button = new Button('The Button');
button.onClick(function(x,y){

jgautier

//create object with function
var Foo=function(){
};
//set the bar method on the prototype
Foo.prototype={
    bar:function(){
        console.log("bar");
    }
};
var foo=new Foo();

jgautier

SerialPort = require('serialport').SerialPort

jgautier

var addNumber=function(x){
  //first class function : a function treated as an object
  return function(y){
      //x is a free variable. (i.e. not a local variable or an argument of this function.)
      //x is bound to the argument x in lexical environment defined by the addNumber function
      return x+y;
  };
};