CODEWITHSUNDEEP
javascript
Berlione87
Berlione87

Reputation: 1

Function empty object check

enter image description here

I need help this task You have to implement function that will Check that object is empty. Object considered to be empty when it has no properties or all its properties are false (I.e. 0, “”, false …)

check object for presence: {},0, “”, symbol(“key”), null, 5,[].

Upvotes: 0

Views: 657

Answers (2)

EEAH
EEAH

Reputation: 747

You can use 'Object.Values(obj)' which returns an array of all the values from the key value pairs of the object passed as parameter.

'!Object.Values(obj)' will return false if there are no values, which means this is not an object.

'anArray.every(element => { //return a boolean } )' will loop through all the items of the array and return true only if the the arrow function returns true for all 'every' element on the array

function isEmpty (obj){
    return !Object.Values(obj) ||
    Object.Values(obj).every (v => !v));

Upvotes: 0

devgiri0082
devgiri0082

Reputation: 76

You can use something like this. This will just loop through the object and check if any value exist and if it does it will just return false else it will return true.

function isEmpty(obj) {
  for (let key in obj) {
     if(!!obj[key]) return false;
   }
   return true;
}

Upvotes: 2

Related Questions