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法律学Stream 中的 writable.writableObjectMode 属性在 Node.js 中
writable.writableObjectMode 属性用于获取给定可写流的 objectMode 属性。如果设置了对象模式，则该属性将返回值“true”，否则将返回值“false”。
语法
writeable.writableObjectMode
示例
创建一个名为 writableObjectMode.js 的文件，并复制以下代码段。创建文件后，使用以下命令运行此代码，如下面的示例所示 −
node writableObjectMode.js
writableObjectMode.js
// Program to demonstrate writable.writableObjectMode property
// Importing the stream module
const stream = require('stream');
// Setting the objectMode to true
objectMode: true
// Creating a data stream with writable
const writable = new stream.Writable({
// Writing the data from stream
write: function(chunk, encoding, next) {
// Converting the data chunk to be displayed
console.log(chunk.toString());
next();
}
});
// Writing data - Not in the buffer queue
writable.write('Welcome to TutorialsPoint !');
writable.write('SIMPLY LEARNING ');
// Printing the length of the queue data
console.log(writable.writableObjectMode == true);输出
C:\home
ode>> node writableObjectMode.js Welcome to TutorialsPoint ! SIMPLY LEARNING true
示例
我们再来看一个示例。
// Program to demonstrate writable.writableObjectMode property
// Importing the stream module
const stream = require('stream');
// Creating a data stream with writable
const writable = new stream.Writable({
// Writing the data from stream
write: function(chunk, encoding, next) {
// Converting the data chunk to be displayed
console.log(chunk.toString());
next();
}
});
// Writing data - Not in the buffer queue
writable.write('Welcome to TutorialsPoint !');
writable.write('SIMPLY LEARNING ');
// Printing the length of the queue data
console.log(writable.writableObjectMode);输出
C:\home
ode>> node writableObjectMode.js Welcome to TutorialsPoint ! SIMPLY LEARNING undefined Default value is undefined.
更新于: 20-May-2021
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