This includes undocumented functions in the docs - ideally everything would be properly documented, but this is a quick fix if you have a huge number of undocumented functions

jsdoc-plugin-undocumented.js

'use strict'
exports.handlers = {
  symbolFound: function (e) {
    let params = e.code.paramnames
    let filename = e.filename.split('doc-stage/')[1].split('.js')[0]
    if (filename === 'module.exports' || filename === 'exports') {
      return
    }
    let type = e.astnode.type
    if (type === 'Property') {
      if (e.code.node.params) {
        params = e.code.node.params.map(n => n.name)
      }
      // Only auto document properties that are functions
      if (!params) {
        return
      }
    }
    if (type === 'MethodDefinition' || type === 'FunctionExpression' || type === 'Property') {
      if (e.comment !== '@undocumented') return

      let name = e.code.node.key && e.code.node.key.name
      if (name && name.startsWith('_')) return
      e.comment = '/**\n* Undocumented - view source for details'
      e.comment += '\n * @memberOf ' + filename
      e.comment += '\n * @inheritDoc'
      if (params) {
        for (let i = 0; i < params.length; i++) {
          e.comment += '\n* @param ' + params[i]
        }
      }
      e.comment += '\n**/'
    }
  }
}