Definition of TypeScript array object type

Can you explain the distinction between these two type definitions?

type objectArray = [object]

type objectArray = object[]

Answer №1

[object] represents a tuple, which is essentially an array containing a single value that must be of type object.

object[] is equivalent to Array<object>, indicating an array that can store any number of values, all of which must be of type object.

While all tuples are arrays, not all arrays are tuples. Tuples impose restrictions by requiring a specific number of elements within the array.

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