how to do foreach in jquery 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 );
});

Example 3: jquery each array object

$.each(largeJSONobject.ReleatedDoc, function (index,value) {
    $('select.mrdDisplayBox').addOption(value.Id, value.Id + ' - ' + value.Number, false);
});