remove null values from object javascript code example

Example 1: javascript remove empty object items

var test = {
  test1: null,
  test2: 'somestring',
  test3: 3,
}

function clean(obj) {
  for (var propName in obj) {
    if (obj[propName] === null || obj[propName] === undefined) {
      delete obj[propName];
    }
  }
  return obj
}

console.log(test);
console.log(clean(test));

Example 2: nodejs remove null from object

for(var key in req.body){
            if(req.body.hasOwnProperty(key)){
                if(req.body[key] == null) delete req.body[key];
            }
        }