HOW TWORK EACH IN J QUERY code example

Example 1: jquery loop through array

var arr = ['one','two','three','four','five'];
$.each(arr, function(index, value){
	console.log('The value at arr[' + index + '] is: ' + value);
});

Example 2: jquery foreach

$.each( obj, function( key, value ) {
  alert( key + ": " + value );
});