Question

var string = 'object.data.path';

That’s a string that resembles a path to variable.

How can I return the corresponding variable from that string?

Something like transforming the string into return object.data.path;

The thing behind this is that the string could be much longer (deeper), like:

var string = 'object.data.path.original.result';

Answer 1

function GetPropertyByString(stringRepresentation) {
    var properties = stringRepresentation.split("."),
        myTempObject = window[properties[0]];
    for (var i = 1, length = properties.length; i<length; i++) {
    myTempObject = myTempObject[properties[i]];
    }

    return myTempObject;
}


alert(GetPropertyByString("object.data.path"));

this assumes that your first level object (in this case called object is global though.
Alternatively, although not recommended, you could use the eval function.