Baseline Widely available
Response
mixin ç **blob()
**æ¹æ³ä½¿ç¨ä¸ä¸ª Response
æµï¼å¹¶å°å
¶è¯»å宿ãå®è¿åä¸ä¸ªä½¿ç¨Blob
è§£å³ç promiseã
response.blob().then(function (myBlob) {
// do something with myBlob
});
åæ°
None.
è¿åå¼A promise that resolves with a Blob
.
卿们 fetch request example (run fetch request live) ä¸ï¼æä»¬ä½¿ç¨Request.Requestæé æ¹æ³å建äºä¸ä¸ªæ°ç request 对象ï¼ç¶å使ç¨å®æ¥è·åä¸ä¸ª JPG æä»¶ãå½ fetch æåçæ¶åï¼æä»¬ä½¿ç¨ blob() ä» response ä¸è¯»åä¸ä¸ªBlob对象ï¼å¹¶ä½¿ç¨URL.createObjectURL å°å®æ¾å ¥ä¸ä¸ª object URLï¼ç¶åæ URL 设置为imgå ç´ ç src 屿§ä»¥æ¾ç¤ºè¿å¼ å¾çã
var myImage = document.querySelector("img");
var myRequest = new Request("flowers.jpg");
fetch(myRequest)
.then(function (response) {
return response.blob();
})
.then(function (myBlob) {
var objectURL = URL.createObjectURL(myBlob);
myImage.src = objectURL;
});
è§è æµè§å¨å
¼å®¹æ§ åè§
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