reader.readAsText(file);// 读取文件内容为字符串}); ReadableStream 示例1 asyncfunctionmain() {// 创建一个 ReadableStream 对象,用于从指定 URL 中读取数据constpromise =fetch('https://www.baidu.com')constresponse =awaitpromiseconstbodyStream = response.body// 创建一个 StreamReader 对象,用于读取数据...
使用WriteStream对象读取文件fs.createWeadstream(path,[options]) WriteStream有一个write方法,将流数据写入到目标对象中。 WriteStream有一个end方法。 WriteStream有一个bytesWritten属性。已在文件中写入数据的字节数 drain事件 ReadStream有一个pipe方法,执行文件的复制操作。 使用ReadStream对象读取文件fs.createRead...
loglevel - Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods. minilog –Lightweight client & server-side logging with Stream-API backends. storyboard - Universal logging library + Chrome extension; it lets you see all client and...
{ private readonly IJSRuntime js = js; public async ValueTask<string> TickerChanged(string symbol, decimal price) => await js.InvokeAsync<string>("displayTickerAlert2", symbol, price); // Calling SuppressFinalize(this) prevents derived types that introduce // a finalizer from needing to re-...
{account}.file.core.windows.net`, credential ); const shareName = "<share name>"; const fileName = "<file name>"; // [Node.js only] A helper method used to read a Node.js readable stream into a Buffer async function streamToBuffer(readableStream) { return new Promise((resolve, ...
//读文件functionreadFile(filename){varfso=newActiveXObject("Scripting.FileSystemObject");varf=fso.OpenTextFile(filename,1);vars="";while(!f.AtEndOfStream)s+=f.ReadLine()+"/n";f.Close();returns;}//写文件functionwriteFile(filename,filecontent){varfso,f,s;fso=newActiveXObject("Scripting....
Node defines "onread" property on the stream'sprototypeobject while it sets the value via streaminstanceobjects. This approach heavily depends on non-standardSetAccessor's semantics. The right fix would be to define "onread" property as a JavaScript accessor usingv8::ObjectTemplate::SetAccessorPro...
This method writes a byte array to the same output stream used by the JavaScript write function. Define the toString method. This is a standard method for a Java object that returns a string representation of the fields of the object. Data Type Conversions Because Java is a strongly ...
all other types:fileis converted to a String and interpreted as a file name. readbuffer(file) reads the content offilesimilar to thereadfunction The result is returned as a JavaScriptArrayBufferobject. readline() reads one line of input from the input stream ...
问题是你在fs.readdir()中使用了一个普通的回调函数，但是在这个回调函数之外执行了await Promise....