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Type is an everyday concept to programmers, but it’s surprisingly difficult to define it succinctly. I find it helpful to use Set as a conceptual model instead.
One extremely powerful typescript feature is automatic type narrowing based on control flow. This means a variable has two types associated with it at any specific point of code location: a declaration type and a narrowed type.
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Top comments (2)
Respuesta
A.
PedroInicialmente el objeto
personatiene en la llavenombrela cadenaFernandopero luego hacemospersona.nombre = "Pedro"que actualiza el valor denombreperdiendo la cadenaFernando.A. Pedro
Aún siendo una constante (const), finalmente es un objeto, cuyos valores sí pueden ser cambiados. De allí que la línea 5 cambie el nombre de Fernando a Pedro.