What is the difference between ‘interface’ declaration merging and type alias intersection when both add the same property with incompatible types?

Explanation

Interface merging in TypeScript combines declarations by producing an intersection. When the same property has incompatible types in both declarations, it becomes 'never.' Type alias intersection behaves in the same way, handling conflicting types by resulting in 'never.'

Key points

Interface merging creates an intersection of declarations
Conflicting property types result in 'never'
Type alias intersection behaves similarly
Both handle incompatible types by producing 'never'

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