typescript - Type declaration for an array of objects with string-based keys?

Question

My web service returns an array of objects that looks like this:

[ 
  {
   "abc": "test 1"
  },
  {
   "def": "test 2"
  },
  {
   "ghi": "test 3"
  }
]

Now I want to declare a TypeScript interface for this result. But I have no idea how to do that because the key of each object can be string whose name varies.

Specifically:

• An object has exactly one property.
• The key of that property can have any name.
• The value of the property is a string.

question from:https://stackoverflow.com/questions/65902275/type-declaration-for-an-array-of-objects-with-string-based-keys

Answer 1

From the code you provided, I suggest using:

const a: { [key: string]: string }[] = [ 
  {
   "abc": "test 1"
  },
  {
   "def": "test 2"
  },
  {
   "ghi": "test 3"
  }
]

It is a string indexed object with string values.