Question

Please see my code:

function foo() {
    var h = "start";
    $.each(some_array_of_objects, function() {
        var name = 'middle';        
        h += name;
    });
    h += "end";
    alert(h);
}

I expect to see accumulated string in my alert but instead of this I got string with a lot of [object Object] strings. Is that possible to accumulate h variable in above way WITHOUT USING global variables?

Answer 1

There’s no need to use jQuery to loop through arrays / object, just use a for loop for arrays, and a for-in for objects.
This will work in your case:

//Assuming the input array is something like this:
some_array_of_objects = [[{name:'ABC'}],[{name:'I am a name'}],[{name:'Look at me!'}],[{name:'foo'}],[{name:'bar'}]]

function foo() {
    var h = "start";
    // Loop through the array.
    for(var i = 0; i < some_array_of_objects.length; i++){
        var name = some_array_of_objects[i][0].name;        
        h += name;
    }
    h += "end";
    alert(h);
}
foo(); //Returns: "startABCI am a nameLook at me!foobarend"