Hi,
`findAll` is for searching through Enumerables -- e.g., Array-like
things. Unless the "JSON object" you're talking about is an Array,
it's not going to help you.
Looping through all of the properties in an object is trivial, though:
var name, value;
for (name in obj) {
value = obj[name];
// use `value`
}
That loops through all properties of the object, including any it
inherits from its prototype (but skipping ones marked as "don't
enumerate me" -- like the `length` property of an Array). If you only
want properties directly owned by the object and *not* by its
prototype:
var name, value;
for (name in obj) {
if (obj.hasOwnProperty(name)) {
value = obj[name];
// use `value`
}
}
This is not recursive, so if your object looks like this:
var obj = {
foo: 42,
bar: {
a: "alpha",
b: "beta"
}
};
...the loop will loop through the `foo` and `bar` keys (in no
particular order), but not `bar`'s properties. For that you'd need a
recursive function:
function deepLoop(obj, ownOnly) {
var name, value;
for (name in obj) {
if (!ownOnly || obj.hasOwnProperty(name)) {
value = obj[name];
if (typeof value === "object") {
deepLoop(value, ownOnly);
}
else {
// use `value`
}
}
}
}
FWIW,
--
T.J. Crowder
Independent Software Consultant
tj / crowder software / comn
www / crowder software / comn
On Sep 17, 5:15 am, kstubs <kst...@gmail.com> wrote:
> How do you chain together findAll and each? I have a Json object
> which I would like to filter, and was thinking to findAll, followed by
> an each on the findAll results. What is the best approach?
>
> Thanks,
> Karl..
--
You received this message because you are subscribed to the Google Groups
"Prototype & script.aculo.us" group.
To post to this group, send email to prototype-scriptacul...@googlegroups.com.
To unsubscribe from this group, send email to
prototype-scriptaculous+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/prototype-scriptaculous?hl=en.
