หัวข้อของบทความนี้จะเกี่ยวกับjavascript promise then example หากคุณกำลังมองหาjavascript promise then exampleมาเรียนรู้เกี่ยวกับหัวข้อjavascript promise then exampleกับKoło Naukowe Systemów Komunikacyjnychในโพสต์JavaScript – Promise (then, catch)นี้.

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JavaScript - Promise (then, catch)
JavaScript – Promise (then, catch)

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เนื้อหาที่เกี่ยวข้องกับjavascript promise then example

#JavaScript #Promise #catch.

생활코딩,코딩,coding,프로그래밍,programming.

JavaScript – Promise (then, catch).

javascript promise then example.

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30 thoughts on “JavaScript – Promise (then, catch) | ข้อมูลทั้งหมดที่เกี่ยวข้องกับjavascript promise then exampleที่สมบูรณ์ที่สุด

  1. 공청의 취미생활 says:

    처음 들으시는 분이 조금 어려울 것 같아서 부연설명차 조심스레 댓글을 달아봅니다.

    19:19 여기에서 Response에 json 메서드를 입혔는데도 Promise가 나오는 것은,

    아직 데이터를 다 받지 않은 상태여서 그렇습니다.(header만 도착하고 body가 오지 않음)

    그래서 다시 체이닝을 통해 작업하는 것이죠. (데이터가 다 도착한 이후에)

    그것이 싫다면 전체에 await을 걸어서 기다린 이후에 json을 입히면 됩니다.

  2. BUMKI says:

    항상 어려울 때에 유튜브에 검색하면 생활코딩님 영상이 있고 그럴 때마다 안도의 한숨을 내쉽니다. 정말 생활코딩님 아니었으면 코딩 공부 못했을 겁니다. 감사합니다.

  3. EasyCoding says:

    학교에서 웹 어플리케이션 강의 시간에 배웠던 내용인데 막상 사용할 줄만 알았지 fetch문이 어떻게 동작 하는지 제대로 이해한 적이 없었는데 이번 기회에 제가 무엇을 모르고 있었는지 알아갑니다. 항상 좋은 강의 만들어주셔서 감사합니다.

  4. 포우 says:

    좋은 강의감사드립니다. 질문 몇가지만 드리겠습니다.
    서버에서 fetch로 가져오는 json자료들은 자동으로 무조건 promise 형태가 되는건가요???
    서버로 부터 자료를 가져오는 행위가 성공, 실패로 나뉘기 떄문에 기본 값으로 promise를 설정해 둔걸까요?
    그리고 fetch해온 URL의 데이터는 json인데 .then(function (response) {console.log(response)} 에 출력되는 수많은 값들(body,stream 등…)의 정체는 뭔가요?
    왜 그냥 json값들을 보여주지 않고 정제 과정을 거쳐야 하는 걸까요?
    너무 기본적인 질문들이여서 쑥쓰럽네요..

  5. 파버실 says:

    항상 글 단위의 몇 줄의 개념으로만 이해하기가 너무 어려웠는데 이 강의를 보고 나서, 심지어 딱 한 번 봤는데 그간 꼬인 실이 풀린것처럼 이해가 완벽하게 됐어요!! 개인적으로 마음에 들지 않는 강의라 하셨지만 저는 설명 하나 하나가 너무 너무 쏙쏙 박혔어요 감사합니다 ㅠㅠ 이런 강의를 무료로 보다니,,, 사는 동안 적게 일하시고 많이 버시길만 바라요 🥰

  6. Henu says:

    이번 강의를 통해 프로미스를 이용한 비동기 통신으로 API를 개발해 봐도 좋겠다라는 생각을 했습니다. 다만, 서로 다른 도메인 상의 API를 호출하면 브라우저의 정책(?)에 의해 통신이 안되는데 이 부분도 추후 어떻게 해결할 수 있는지 다뤄주셨으면 좋겠습니다!

    매번 좋은 강의 감사드려요.

  7. aram kim says:

    then과 catch를 쓰려면 promise 객체가 있어야 한다… 라고, 이해해도 무리 없을까요?
    그동안 then이랑 catch 많이 들어보긴 했지 얘들을 어디에? 어떻게? 무엇을 위한 건지 몰라서 헷갈렸었는데 이 강의 보면서 감이 오는 듯 합니다! 감사합니다

  8. 때구니 says:

    execute context, closuer, varVs letVs const, callback, Promise까지 연속적으로 어려웠던 내용을 안개가 걷히듯 명쾌하게 이해시켜 주는 최고의 명강의 입니다. 깊은 감사 드립니다.~~

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