[javascript] foreach for JSON array , syntax

my script is getting some array from php server side script.

result = jQuery.parseJSON(result);

now I want to check each variable of the array.

if (result.a!='') { something.... }
if (result.b!='') { something.... }
....

Is there any better way to make it quick like in php 'foreach' , 'while' or smth ?

UPDATE

This code ( thanks to hvgotcodes ) gives me values of variables inside the array but how can I get the names of variables also ?

for(var k in result) {
   alert(result[k]);
}

UPDATE 2

This is how php side works

$json = json_encode(array("a" => "test", "b" => "test",  "c" => "test", "d" => "test"));

You can use the .forEach() method of JavaScript for looping through JSON.

var datesBooking = [_x000D_
    {"date": "04\/24\/2018"},_x000D_
      {"date": "04\/25\/2018"}_x000D_
    ];_x000D_
    _x000D_
    datesBooking.forEach(function(data, index) {_x000D_
      console.log(data);_x000D_
    });

Try this:

$.each(result,function(index, value){
    console.log('My array has at position ' + index + ', this value: ' + value);
});

Sure, you can use JS's foreach.

for (var k in result) {
  something(result[k])
}