Http. response. writeHead method in node. js

Source: Internet
Author: User

Http. response. writeHead method in node. js

Method description:

Sends a response header to the requested client.

This function can be called at most once in a request. If this function is not called, a response header is automatically generated.

Syntax:

Copy codeThe Code is as follows:
Response. writeHead (statusCode, [reasonPhrase], [headers])

Receiving parameters:

StatusCode HTTP status code, such as 200 (successful request) and 404 (not found.

ReasonPhrase

Headers is similar to an object associated with an array, indicating each attribute of the response header.

Example:

Copy codeThe Code is as follows:
Var body = 'Hello world ';
Response. writeHead (200 ,{
'Content-length': body. Length,
'Content-type': 'text/plain'
});

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