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Head First JavaScript Programming, 2nd Edition
book

Head First JavaScript Programming, 2nd Edition

by Eric Freeman, Elisabeth Robson
March 2025
Beginner to intermediate
662 pages
18h 26m
Portuguese (Portugal, Brazil)
O'Reilly Media, Inc.
Content preview from Head First JavaScript Programming, 2nd Edition

Capítulo 6. Interagir com a tua página Web: Conhecer o DOM

Este trabalho foi traduzido com recurso a IA. Agradecemos o teu feedback e comentários: translation-feedback@oreilly.com

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Percorreste um longo caminho com o JavaScript. Na verdade, evoluíste de um novato para um programador de scripts para, bem, um programador. Mas ainda falta algo. Para começares a tirar partido das tuas competências em JavaScript, precisas de saber como interagir com a página Web em que o teu código se encontra. Só assim poderás escrever páginas que são dinâmicas, páginas que reagem, que respondem, que se actualizam depois de terem sido carregadas. Então, como é que interages com a página? Usando o DOM, também conhecido como o modelo de objeto de documento. Neste capítulo, vamos analisar o DOM e mostrar-te como o podes utilizar, juntamente com o JavaScript, para ensinar às tuas páginas alguns truques novos.

No último capítulo, deixámos-te com um pequeno desafio... o "desafio de decifrar o código"

Foi-te dado algum HTML com código num ficheiro externo, capturado do site do Dr. Evel, que se parecia com isto:

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E precisavas de descobrir a senha do Dr. Evel usando os teus poderes dedutivos neste código. ...

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Publisher Resources

ISBN: 9798341637511