如何使用 reviver function 与 fetch.response.json()

Question

There is a "reviver" function that comes with JSON.parse (eg: "JSON.parse using reviver function" ). JSON.parse 附带一个“reviver” function （例如： “JSON.parse using reviver function” ）。

How can I use this "reviver" with response.json ?如何将这个“复兴者”与response.json一起使用？ for instance:例如：

fetch(url)
.then(a => a.json({reviver}))    // unfortunately not working
.then(...)

I have a workaround:我有一个解决方法：

fetch(url)
.then(a => a.text())
.then(b => new Promise((resolve) => resolve(JSON.parse(b, reviver))))
.then()

but it uses one more step, which seems useless.但它使用了更多步骤，这似乎没用。 Any better idea?有更好的主意吗？

Answer 1

Your workaround is basically the best option but as mentioned, the extra promise is unnecessary.您的解决方法基本上是最好的选择，但如前所述，额外的 promise 是不必要的。

fetch(url)
    .then(response => response.text())
    .then(text => JSON.parse(text, reviver))
    // ...

Answer 2

You could do:你可以这样做：

 fetch(url).then((response) => {return response.json()}).then((json) => {console.log(json)});

Hope it helps;)希望能帮助到你;）