JavaScript accede a la propiedad anidada por cadena
Object.byString = function(o, s) {
s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties
s = s.replace(/^\./, ''); // strip a leading dot
var a = s.split('.');
for (var i = 0, n = a.length; i < n; ++i) {
var k = a[i];
if (k in o) {
o = o[k];
} else {
return;
}
}
return o;
}
Usage:
Object.byString(someObj, 'part3[0].name');
// Credits: https://stackoverflow.com/questions/6491463/accessing-nested-javascript-objects-and-arrays-by-string-path
Maximilian Walker