loop through a json object to get the keys code example

Example 1: javascript json key value loop

var p = {
    "p1": "value1",
    "p2": "value2",
    "p3": "value3"
};

for (var key in p) {
    if (p.hasOwnProperty(key)) {
        console.log(key + " -> " + p[key]);
    }
}

Example 2: loop through json array and get key name

function iterateNodes(data) {
    for (var i = 0, l = data.nodes.length; i < l; i++) {
        var node = data.nodes[i];

        console.log(node.name);

        if (node.nodes) {
            arguments.callee(node);
        }
    }
}

iterateNodes(data);