i want to lookup a value and I get this

Copy code

{
  "reference": []
}

i need to include an if condition on this like if it is empty. how can i do this? i tried with null and undefined, but no use. Could anyone please help?

reference.length < 1

See my comment above as well. Show code. It's not clear if you're unsure how to check the length of an array, or unsure how to interact with an object.

thank you so much, its is done