Check for non null array during filtering an object

Trying to filter the object to return only non null values.

Below is excerpt from my code. How do I check for non null values in the array job in this case?

const name = null,
  age = '25',
  job = [null];

const obj = {
  name,
  age,
  job
};

const result = Object.fromEntries(
  Object.entries(obj).filter(([_, value]) => value)
);

console.log(result)

Could anyone please help?

I was expecting the result to be

{
  "age": "25"
}

Answer

First map the array in the entries to keep only truthy values, then filter the entries by whether the entry is truthy and not a 0-length array:

const name = null,
  age = '25',
  job = [null];

const obj = {
  name,
  age,
  job
};

const result = Object.fromEntries(
  Object.entries(obj)
    .map(
      ([key, value]) => [key, Array.isArray(value) ? value.filter(v => v) : value]
    )
    .filter(([, value]) => value && (!Array.isArray(value) || value.length))
);

console.log(result)