deepOmit.js

export function deepOmit(obj, excludes) {
  const result = {}
  excludes = Array.isArray(excludes) ? excludes : [excludes]

  for (let i in obj) {
    if (Array.isArray(obj[i])) {
      const nextValue = obj[i].map(arrItem => {
        if (isObject(arrItem)) {
          return deepOmit(arrItem, excludes)
        }

        return arrItem
      })

      result[i] = nextValue
    } else if (!excludes.includes(i)) {
      result[i] = obj[i]
    }
  }

  // cache new object
  for (let i in result) {
    if (isObject(result[i])) {
      result[i] = deepOmit(result[i], excludes)
    }
  }

  return result
}

function isObject(obj) {
  return Object.prototype.toString.call(obj) === '[object Object]'
}

deepOmit.md

How to use deepOmit?

• with array

const obj = { username: 'foo', password: 'bar', __typename: 'User' }
const newObj = deepOmit({ username, password }, ['__typename'])
console.log(newObj) -> { username: 'foo', password: 'bar' }

• simple prop

const obj = { username: 'foo', password: 'bar', __typename: 'User' }
const newObj = deepOmit({ username, password }, '__typename')
console.log(newObj) -> { username: 'foo', password: 'bar' }

• deep prop

const obj = { username: 'foo', password: 'bar', other: { prop: 'test', __typename: 'User' } }
const newObj = deepOmit({ username, password }, ['__typename'])
console.log(newObj) -> { username: 'foo', password: 'bar', other: { prop: 'test' } }