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Sobre o Livro

Desde que as Promises foram adicionadas ao JavaScript em 2015, elas se tornaram parte integrante da linguagem. Uma boa compreensão de como as Promises funcionam é mais importante do que nunca para se tornar um desenvolvedor proficiente do JavaScript. Este livro foi escrito para introduzir as Promises e suas complexidades em um formato simples e fácil de ler. Cada capítulo é preenchido com exemplos práticos e reais, usando as técnicas discutidas, e todos os exemplos estão disponíveis para download com sua compra.

O que você vai aprender:

  • Quais partes das Promises são síncronas e quais são assíncronas
  • Como utilizar eficazmente cadeias de Promises para simplificar seu código
  • A melhor maneira de capturar erros nas Promises
  • Como criar suas próprias Promises
  • Formas de trabalhar com múltiplas Promises ao mesmo tempo
  • Uso das as expressões async/await para facilitar o uso das Promises
  • O que acontece com as Promises rejeitadas sem os manipuladores de rejeição

Sobre os Autores

Nicholas C. Zakas’s avatar Nicholas C. Zakas

@slicknet

Instagram

Nicholas C. Zakas is an independent software engineer, consultant, coach, and has authored over a dozen books. He created the ESLint open source project and has worked on everything from small websites to massive-scale web applications. He has worked at Box as a principal architect and Yahoo as a presentation architect. Nicholas is a strong advocate for development best practices including progressive enhancement, accessibility, performance, scalability, and maintainability.

Daniel Schmitz’s avatar Daniel Schmitz

@DanielSchmitzjf

Daniel Schmitz is a software developer and writer. He's originally from Brazil and has published several books in Portuguese/English.

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