Change all null to '' in array of Objects (javascript)

Question

I have this array of objects shown below

Object {Results:Array[3]}
    Results:Array[3]
        [0-2]
             0:Object
                    id=null     
                    name: "Rick"
                    Value: "34343"
             1:Object
                    id=2     
                    name: null
                    Value: "2332"
             2:Object
                    id=2     
                    name:'mike'
                    Value: null

As you can see, in 1 object i have id as null, 2nd object has name as null and 3rd object has Value as null. Each object has some property as null.

I want to loop through all of these and replace null with ''. Can someone let me know how to achieve this...

Answer 1

Here's something quick:

var results = [{
    id: null,
    name: "Rick",
    Value: "34343"
}, {
    id: 2,
    name: null,
    Value: "2332"
}, {
    id: 2,
    name: 'mike',
    Value: null
}];

results.forEach(function(object){
    for(key in object) {
        if(object[key] == null)
            object[key] = '';
    }
});

console.log(JSON.stringify(results, null, 2))

Answer 2

You only needed to Google looping through objects. Here's an example:

Looping through every key (if your keys are unknown or you want to do the same for all keys)

for (const obj of arr) {
  if (typeof obj !=== 'object') continue;
  for (k in obj) {
    if (!obj.hasOwnProperty(k)) continue;
    v = obj[k];
    if (v === null || v === undefined) {
      obj[k] = '';
    }
  }
}

If your keys are known:

for (const obj of arr) {
  if (obj.name === undefined || obj.name === null) {
    obj.name = '';
  }
}