Difference between res.send() and res.json() in Express.js?

In this article, we will learn about res.send() & res.json(), along with discussing the significant distinction that differentiates between res.send() & res.json().

Let us first understand what is res.send() and res.json() in Express.js?

res.send() - The res.send() function is used for sending the response for the HTTP request. It takes a parameter body. The parameter can be a String, Buffer object, an object, Boolean, or an Array.

Syntax:

res.send( [body] )

Parameter: The body parameter takes a single argument that describes the body that is to be sent in the response.

Content Type: The Express sets the content type of the parameter according to the type of the body parameter.

• String & HTML - “text/html”
• Buffer - “application/octet-stream”
• Array & object - "application/json"

Return Type: It is used to send a response to the client and then ends the response process. The method itself doesn't return anything.

Example: This example demonstrate the simple res.send().

const