.each jQuery function iterates through an array or an object

.each jQuery function.js

//consolable
//1. Simple usage, on an array
// basically pass in an array, .each will iterate over each element in the array.
 // here the output is the index (0,1,3), then the value ( 52, 97 )
 //This can get more sophisticated when passing in data from a Json file.  
 
$.each([ 52, 97 ], function( index, value ) {
  alert( index + ": " + value );
});

//2.  If an object is passed in instead of an array, the callback passed a key-value pair each time.
//see jsbin https://jsbin.com/rekufa/2

var robotWeakness = {
  "water": "Will Rust",
  "flame": "internal circuitry damage", 
  "electricity" : "Stun damage"
};
$.each(robotWeakness, function( key, value ) {
  document.write( key + ": " + value + "</br>" );
});

//3.  How to break out of the iteration. return once a certain value is hit.  
var robotWeakness = {
  "water": "Will Rust",
  "flame": "internal circuitry damage", 
  "emotion" : "Sympathy",
  "electricity" : "Stun damage"
};
$.each(robotWeakness, function( key, value ) {
  document.write( key + ": " + value + "</br>" );
  //break the iteration if you hit this...
  return ( value !== "Sympathy");
});