If the received value is "" ,we want to delete that particular property from object

Question

For a given object if the input "value" of a property is "" , we want to delete that property from the object .

Ex

{
 "Speed": "59 MBPS",
 "latitude": "90.2",
 "longitude": ""
}

As per the example ,since the value of longitude is "" , this should get deleted from the object. Please suggest a javascript code to achieve this .

To `delete` a key (or a property) from an object you can use, well, the `delete` keyword — Adelin, Jul 20 '18 at 11:42
Please visit the [help], take the [tour] to see what and [ask]. Do some research, search for related topics on SO; if you get stuck, post a [mcve] of your attempt, noting input and expected output. — mplungjan, Jul 20 '18 at 11:44
`for (var propName in obj) { if (obj[propName] === "") { delete obj[propName];}}` — mplungjan, Jul 20 '18 at 11:54

vibhor1997a · Answer 1 · 2018-07-20T11:50:16.580

1

You can use Object.keys() to get keys from the Object. Then you can filter the properties !=="" and then reduce it to form an Object.

Something like this:-

let o = {
  "Speed": "59 MBPS",
  "latitude": "90.2",
  "longitude": "",
  "prop": ""
};

let res = Object.keys(o).filter(k => o[k] !== "").reduce((acc, cv) => {
  acc[cv] = o[cv];
  return acc;
}, {});
console.log(res);

Or simply use delete like below:

let o = { "Speed": "59 MBPS", "latitude": "90.2", "longitude": "" };

for (let key in o) {
    if (o.hasOwnProperty(key) && o[key] == "") {
        delete o[key];
    }
}

console.log(o);

edited Jul 20 '18 at 11:50

answered Jul 20 '18 at 11:41

vibhor1997a

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You could also have found a dupe and posted that – mplungjan Jul 20 '18 at 11:47
1

Now I will keep to find dupes in for such questions before answering them :) – vibhor1997a Jul 20 '18 at 11:48
1

This in IMO cleaner: `for (var propName in obj) { if (obj[propName] === "") { delete obj[propName];}}` instead of wasting time on getting the keys – mplungjan Jul 20 '18 at 11:49

If the received value is "" ,we want to delete that particular property from object

1 Answers1