April 2025
Intermediate to advanced
324 pages
7h 35m
Portuguese (Portugal, Brazil)
Content preview from Programando o TypeScript
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Apêndice A. Operadores de tipo
O TypeScript suporta um conjunto rico de operadores de tipo para trabalhar com tipos. Utiliza a Tabela A-1 como uma referência útil para quando pretenderes saber mais sobre um operador.
| Tipo de operador | Sintaxe | Utiliza-o em | Aprende mais |
|---|---|---|---|
Consulta de tipo |
|
Qualquer tipo |
|
Chaves |
|
Tipos de objectos |
|
Consulta de propriedades |
|
Tipos de objectos |
|
Tipo mapeado |
|
Tipos de objectos |
|
Acréscimo de modificadores |
|
Tipos de objectos |
|
Subtração de modificadores |
|
Tipos de objectos |
|
Modificador só de leitura |
|
Tipos de objectos, tipos de matrizes, tipos de tuplas |
"Objectos", "Classes e herança", "Matrizes e tuplas só de leitura" |
Modificador opcional |
|
Tipos de objectos, tipos de tuplas, tipos de parâmetros de funções |
|
Tipo condicional |
|
Tipos genéricos, aliases de tipos, tipos de parâmetros de funções |
|
Não |
|
Tipos anuláveis |
|
Parâmetro de tipo genérico predefinido |
|
Tipos genéricos |
|
Afirmação de tipo |
|
Qualquer tipo |
|
Guarda de tipo |
|
Tipos de retorno de funções |
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.