Objects

Construct

var myMachine = {
    path: 'images/',
    speed: 3200,
    images: ["green.gif", "ref.gif", "orange.gif", "brown.gif"]
}

var params = {};
params.name = 'Ram';
params.id = 21;

Iterate

for (key in data) {
    if (data.hasOwnProperty(key)) {

Note:

• There is no guarantee on the order of the names.

• hasOwnProperty is required, because the for look will iterate over all functions and prototype properties of the object.

Helper

hasOwnProperty

for (name in object) {
    if (object.hasOwnProperty(name)) {

Sample

Also see prototype:

o = Object();
o.x = 2;
o.y = 3;
print(o.x)
print(o["x"])

// an object literal:
o = { x:2, y:3 }
print(o.y)
print(o['y'])