custom truncate strategy

A new option customNodeStrategy has been added. Check readme for details.

For your requirements, the following code may achieve your needs:

import truncate, { type IOptions, type ICustomNodeStrategy } from 'truncate-html'

// argument node is a cheerio instance
const customNodeStrategy: ICustomNodeStrategy = node => {
  // keep details and treat it as nothing inside
  if (node.is('details')) {
    return 'keep'
  }
}

const html = '<div><details><summary>Click me</summary><p>Some details</p></details>other things</div>'

const options: IOptions = {
  length: 3,
  customNodeStrategy
}

truncate(html, options)
// => <div><details><summary>Click me</summary><p>Some details</p></details>oth...</div>

ref: #41