enumerating chains in javascript

[barstu]

I'm trying to do a for loop in javascript through every chain in an instrument rack using this:

x = new LiveAPI("id " + rID);
for (var chain in x.get("chains")) {

}

This isn't working because x.get("chains") returns "id 12 id 27 id 42"

So must I do some string processing and remove the 'id' and manually split the numbers into an array myself or is there some inbuilt method to enable me to do a for loop 'out of the box'?

[darth_fader]

For components I use the following code. I have not tested it but I guess it works the same for chains:

var api = new LiveAPI (null, "");
var count = api.getcount ('components');
for (var j = 0; j < count; j++)
{
api.path = ['control_surfaces', i, 'components', j];
componentNames[j] = api.get ('name');
}

[ST8]

Yep i do the same thing in kapture. Get the number of chains from the api with getcount, then iterate through each one.

[barstu]

Thanks for that, As I'm dealing with some deep nested chains I've tried to avoid paths and just stick to ID's using the following

for (var chainID in x.get("chains").asAPIObjects() ){
var chain = new LiveAPI("id " + chainID);
}

Array.prototype.asAPIObjects=function(){
var output = new Object()
for(var c = 0; c < this.length; c++){
if (this[c] !="id"){
output[this[c]] = new Object();
}
}
return output;
}

What I really wanted to do was have the extended function return a collection of the chains as API objects (as the method name suggests) but I couldn't get it working. Ah well the above works ok for me for now.

Thanks for tips

[ST8]

Thats a great idea barstu. In python thats how it works, for example tracks returns a tuple of track objects. Would be much simpler in m4l if we could prototype each of the arrays to return the actual objects