Node.js 中的流 writable.writableObjectMode 属性
该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“真”，否则将返回“假”。
语法
writeable.writableObjectMode
示例
创建一个具有名称的文件-writableObjectMode.js并复制以下代码片段。创建文件后，使用以下命令运行此代码，如下例所示-
node writableObjectMode.js
writableObjectMode.js
//演示writable.writableObjectModeproperty的程序
//导入流模块
const stream = require('stream');
//将objectMode设置为true
objectMode: true
//创建具有可写性的数据流
const writable = new stream.Writable({
//从流中写入数据
write: function(chunk, encoding, next) {
//转换要显示的数据块
console.log(chunk.toString());
next();
}
});
//写入数据-不在缓冲队列中
writable.write('Welcome to nhooo !');
writable.write('SIMPLY LEARNING ');
//打印队列数据的长度
console.log(writable.writableObjectMode == true);输出结果C:\home\node>> node writableObjectMode.js Welcome to nhooo ! SIMPLY LEARNING true
示例
让我们再看一个例子。
//演示writable.writableObjectModeproperty的程序
//导入流模块
const stream = require('stream');
//创建具有可写性的数据流
const writable = new stream.Writable({
//从流中写入数据
write: function(chunk, encoding, next) {
//转换要显示的数据块
console.log(chunk.toString());
next();
}
});
//写入数据-不在缓冲队列中
writable.write('Welcome to nhooo !');
writable.write('SIMPLY LEARNING ');
//打印队列数据的长度
console.log(writable.writableObjectMode);输出结果C:\home\node>> node writableObjectMode.js Welcome to nhooo ! SIMPLY LEARNING undefined Default value is undefined.