如何使用js从无效的json字符串中提取最后一个元素

Question

I'm using a nodejs speech recognition API that returns a string with multiple texts inside a JSON like structure which is invalid and unusable

{
  "text": "Play"
}
{
  "text": "Play astronaut"
}
{
  "text": "Play astronaut in the"
}
{
  "text": "Play astronaut in the ocean"
}
{
  "entities": {},
  "intents": [],
  "text": "Play astronaut in the ocean.",
  "traits": {}
} 

and I only want last element which is

{
  "entities": {},
  "intents": [],
  "text": "Play astronaut in the ocean.",
  "traits": {}
}

by filtering it out or something to extract the text "Play astronaut in the ocean."

The API always outputs multiple text elements in different quantities each time, but I want the last element is that possible? or should I find a different API that's usable?

Answer 1

Assuming the response is returned as an array, ie [{ "text": "Play" }, { next one.. }] etc

Then you can get the last element in the array by variablising the array, get its length, and find the last object.

eg

const x = [{ text.. }, { text.. }]
const lastItem = x[x.length - 1]

Then if you also want to find the last item within that object, you could also do that with Object.values

const lastItemObject = Object.values(lastItem)
const lastItemInTheObject = lastItemObject[lastItemObject.length - 1]