Fetch Reader最新版截图 # Fetch Reader最新版 Fetch Reader lets you pursue whatever grabs your interest in print and experience it to the fullest via your Android phone. Fetch detects digital watermarks which are only visible to smartphones, bringing your print to life by connecting you with ...
fetch('https://example.com/data.json').then(response=>{constreader=response.body.getReader();con...
constresponse=awaitfetch('flower.jpg');constreader=response.body.getReader();while(true){const{done,value}=awaitreader.read();if(done){break;}console.log(`Received${value.length}bytes`)} response.body.getReader() 返回一个遍历器,这个遍历器 read() 方法每次都会返回一个对象,表示本次读取的内容块...
假设我们需要读取一个流中的的数据,可以循环调用 reader 的read()方法,它会返回一个Promise对象,在Promise中返回一个包含value参数和done参数的对象。 constreader=stream.getReader();letbytesReceived=0;constprocessData=(result)=>{if(result.done){console.log(`complete, total size:${bytesReceived}`);return;...
return reader.read().then(processText) }) } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37.
log("Received", bytesReceived, "bytes of data so far"); // Read some more, and call this function again return reader.read().then(processResult); }); }); 另外,github上也有使用Promise+XHR结合的方式实现类fetch的progress效果(当然这跟fetch完全不搭边)可以参考这里,具体代码如下: ...
An android feed reader application which fetch data with selector and regular expression. 该应用仍处于前期alpha测试阶段,BUG和崩溃都是不可避免的常有,如果你遇到了,请在issues提交一条BUG报告,方便我复现并修复 Note that this app is still in alpha stage, and so bugs and creashes you may often run...
使用data.clone()方法复制了响应对象data,然后使用getReader()方法获取数据流中的reader对象,接着通过读取数据流并计算已加载字节数,实现了一个基于原生JavaScript的进度条功能。 const btn = document.querySelector('#send')const sendFetch = async () => {const data = await fetch('http://localhost:3000/...
() returns a promise that resolves when a value has been receivedreader.read().then(functionprocessResult(result){// Result objects contain two properties:// done - true if the stream has already given you all its data.// value - some data. Always undefined when done is true.if(result....
const {done, value} = await reader.read(); if (done) { break; } console.log(`Received ${value.length} bytes`) } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 上面示例中,response.body.getReader()方法返回一个遍历器。这个遍历器的read()方法每次返回一个对象,表示本次读取的内...