The ok
read-only property of the Response
interface contains a Boolean stating whether the response was successful (status in the range 200-299) or not.
The ok
read-only property of the Response
interface contains a Boolean stating whether the response was successful (status in the range 200-299) or not.
A boolean value.
In our Fetch Response example (see Fetch Response live) we create a new Request
object using the Request()
constructor, passing it a JPG path. We then fetch this request using fetch()
, extract a blob from the response using Response.blob
, create an object URL out of it using URL.createObjectURL()
, and display this in an <img>
.
Note: at the top of the fetch()
block we log the response ok
value to the console.
js
const myImage = document.querySelector("img"); const myRequest = new Request("flowers.jpg"); fetch(myRequest).then((response) => { console.log(response.ok); // returns true if the response returned successfully response.blob().then((myBlob) => { const objectURL = URL.createObjectURL(myBlob); myImage.src = objectURL; }); });
Specification |
---|
Fetch Standard # ref-for-dom-response-ok② |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
ok |
42 | 14 | 39 | No | 29 | 10.1 | 42 | 42 | 39 | 29 | 10.3 | 4.0 |
© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Response/ok