Using JavaScript what's the quickest way to recursively remove properties and values from an object?

Question

I need to find the fastest way to remove all $meta properties and their values from an object, for example:

{
  \"part_one\": {
    \"name\": \"         


        

Answer 1

// recursively delete a key from anywhere in the object
// will mutate the obj - no need to return it
const deletePropFromObj = (obj, deleteThisKey) => {
  if (Array.isArray(obj)) {
    obj.forEach(element => deletePropFromObj(element, deleteThisKey))
  } else if (typeof obj === 'object') {
    for (const key in obj) {
      const value = obj[key]
      if (key === deleteThisKey) delete obj[key]
      else deletePropFromObj(value, deleteThisKey)
    }
  }
}

deletePropFromObj(obj, '$meta');