remove of null object

February 5, 2023

how can I not release data if two attributes are empty?

const fork = [
  { from: 'client', msg: null, for: null },
  { from: 'client', msg: '2222222222222', for: null },
  { from: 'server', msg: 'wqqqqqqqqqqqq', for: 'data/64.....' }
];

console.log(message)

These are three sample entries, in fact they are always replenished. And there are more.

I need to do this, if two attributes are empty then do not send if somewhere null then do not release this value

const fork = [
  { from: 'client', msg: null, for: null }, // remove line full
  { from: 'client', msg: '2222222222222', for: null }, // remove for
  { from: 'server', msg: null, for: 'data/64.....' } // remove msg
];
console.log(message)

>Solution :

const fork = [
  { from: 'client', msg: null, for: null },
  { from: 'client', msg: '2222222222222', for: null },
  { from: 'server', msg: 'wqqqqqqqqqqqq', for: 'data/64.....' }
];

const result = fork.map(item => {
  if (Object.values(item).filter(i => i === null).length > 1) return null
  const obj = {...item}
  for (const key in obj) {
    if (obj[key] === null) {
      delete obj[key]
    }
  }
  return obj
}).filter(item => item !== null)

console.log(result)