foreach for JSON array , syntax

Question

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")); 

Answer 1

You can do something like

for(var k in result) {    console.log(k, result[k]); } 

which loops over all the keys in the returned json and prints the values. However, if you have a nested structure, you will need to use

typeof result[k] === "object" 

to determine if you have to loop over the nested objects. Most APIs I have used, the developers know the structure of what is being returned, so this is unnecessary. However, I suppose it's possible that this expectation is not good for all cases.

Answer 2

Try this:

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