[Dilettante_Pro]

var test = [{name:{}, summ:{}, number:{}},{name:'name', summ:132, number:2}];

for (var i = 0; i < test.length; i++) {
    for(key in test[i]) {
       if(JSON.stringify(test[i][key]) != "{}" ){
	    console.log(test[i][key]);
       }
    }
}