Instructions for using the fs.createWriteStream method in node.js_node.js

Method description:

Returns a WriteStream (output stream) object (writable stream).

Grammar:

Copy code The code is as follows:

fs.createWriteStream(path, [options])

Since this method belongs to the fs module, the fs module needs to be introduced before use (var fs= require(“fs”) )

Receive parameters:

path File path

The

option (object) parameter contains the following attributes:

Copy code The code is as follows:

{ flags: 'w',

encoding: null,

mode: 0666 }

option contains a startup option to allow writing data at the beginning of certain files.

The default value of flags is w. If you want to modify a file instead of replacing it, you need to change flags to R.

Example:

Copy code The code is as follows:

fs.createWriteStream = function(path, options) {

Return new WriteStream(path, options);

};