XMLStreamPrinter

XMLStreamPrinter is a stream mode XML generator.

const fs = require ('node:fs')
out = fs.createWriteStream ('out.xml')

const {XMLStreamPrinter} = require ('xml-toolkit')

const xp = new XMLStreamPrinter ({
//  out,
//  decl: {encoding: 'UTF-8', standalone: 1},
//  space: 2, 
//  attrSpace: 1, 
//  EOL: '\n',
//  level: 0, 
//  encodeLineBreaks: false,
})

xp
.openElement ('outer')
	.writeAttribute ('id', '1')
	.openElement ('inner')
		.writeCharacters ('txt')
	.closeElement ()
	.openElement ('leaf').closeElement ()
.closeElement ()

out.end ()

The API is almost the same as XMLPrinter's (see there for details).