JavaScript

Get an Email's MIME into a StringBuilder

Demonstrates the Chilkat Email.GetMimeSb method, which returns the email as MIME text (header, body or bodies, related items, and all attachments) by appending it to a StringBuilder object. This example builds a message and appends its MIME to a StringBuilder.

Background: This is a StringBuilder-based alternative to GetMime, which returns a plain string. Writing into a StringBuilder is more efficient when the MIME is large or when you intend to further manipulate it — searching, replacing, or accumulating additional text — without creating many intermediate string copies.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

//  Demonstrates the GetMimeSb method, which returns the email as MIME text (headers, bodies,
//  related items, and attachments), appending it to a StringBuilder object.

var email = new CkEmail();
email.Subject = "GetMimeSb example";
email.From = "alice@example.com";
email.AddTo("Bob","bob@example.com");
email.Body = "Hello!";

//  Append the complete MIME to a StringBuilder.
var sbMime = new CkStringBuilder();
success = email.GetMimeSb(sbMime);
if (success == false) {
    console.log(email.LastErrorText);
    return true;
}

console.log(sbMime.GetAsString());