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.
Response.ok
Value
A boolean value.
Examples
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.
var myImage = document.querySelector('img'); var myRequest = new Request('flowers.jpg'); fetch(myRequest).then(function(response) { console.log(response.ok); // returns true if the response returned successfully response.blob().then(function(myBlob) { var objectURL = URL.createObjectURL(myBlob); myImage.src = objectURL; }); });
Specifications
Specification |
---|
Fetch Standard # ref-for-dom-response-ok② |
Browser compatibility
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
|
See also
© 2005–2021 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