Code:
var animals = {
\"elephant\": {
\"name\" : \"Bingo\",
\"age\" :
You could use Object.keys(animals).length
Or
var count = 0;
for (var animal in animals) {
if (animals.hasOwnProperty(animal)) {
count++;
}
}
// `count` now holds the number of object literals in the `animals` variable
Or one of many jQuery solutions that may or may not be the most efficient:
var count = $.map(animals, function(n, i) { return i; }).length;