javascript - Lodash remove items recursively

Question

Given this JSON object, how does lodash remove the reach value from the objects?

{ 
    total: 350,
    SN1: { 
        reach: 200,
        engagementRate: 1.35
    },
    SN2: {
        reach: 150,
        engagementRate: 1.19
    }
}

I've been trying to iteratively remove() it but I always get an undefined object in return so I'm positive I'm doing it wrong. This is also the first time I'm using lodash, so that might be the actual problem.

Can anyone help?

Answer 1

_.transform() the object to another object, and while passing the values to the new object, check if the value is an object and if it has the 'reach' property, and if so use _.omit() to get a new object without reach:

var obj = {
  total: 350,
  SN1: {
    reach: 200,
    engagementRate: 1.35
  },
  SN2: {
    reach: 150,
    engagementRate: 1.19
  }
};

var result = _.transform(obj, function(result, value, key) {
  result[key] = _.isObject(value) && `reach` in value ? _.omit(value, 'reach') : value;
});

console.log(result);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.15.0/lodash.min.js"></script>