An object property name can be any valid JavaScript string, or anything that can be converted to a string, including the empty string.
El nombre de la propiedad de un objeto puede ser cualquier cadena válida de JavaScript, o cualquier cosa que se pueda convertir en una cadena, incluyendo una cadena vacía.
You can call any of the methods of the String object on a string literal value-JavaScript automatically converts the string literal to a temporary String object, calls the method, then discards the temporary String object.
You can call any of the methods of the String object on a string literal value-JavaScript automatically converts the string literal to a temporary String object, calls the method, then discards the temporary String object.
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