Nested forEach loop does not work

Question

I have some data that is in JSON object array. I\'m trying to use nested forEach loops to extract the data.

The data is modeled like belo. There\'s multiple dataModels

Answer 1

Nesting foreach is really a bad practice. Instead of that you can use the map() function to get data.

Suppose a array of object be like this & now here how to use map instead of multiple foreach();

data = [{
    dataModels: [{
        childNodes: {
            appId: 'foo'
        }
    }]
}];


data.forEach(function(obj) {
    var res = obj.dataModels.map(function(o) {
        return o.childNodes;
    });
    console.log(res[0]);
});