Find index in array of objects

Question

I would like to find index in array. Positions in array are objects, and I want to filter on their properties. I know which keys I want to filter and their values. Problem i

Answer 1

I'm not sure, but I think that this is what you need:

var data =  [{
    "text":"one","siteid":"1","chid":"default","userid":"8","time":1374156747
}, {
    "text":"two","siteid":"1","chid":"default","userid":"7","time":1374156735
}];
var filterparams = {userid:'7', chid: 'default'};

var index = data.indexOf( _.findWhere( data, filterparams ) );