Wtf-plugin-person NPM

A plugin that finds birth date, birth place, and death date information for people, in its various places in a wikipedia article.

const wtf = require('wtf_wikipedia')
wtf.extend(require('wtf-plugin-person'))
;(async () => {
  await wtf.fetch('David Phillips (entrepreneur)').birthDate()
  // {year: 1964, month:null, date:null}
})()

<script src="https://unpkg.com/wtf_wikipedia"></script>
<script src="https://unpkg.com/wtf-plugin-person"></script>
<script defer>
  wtf.plugin(window.wtfPerson)
  wtf.fetch('Elvis Presley').then((doc) => {
    console.log(doc.deathPlace())
    // Memphis, Tennessee, U.S.
  })
</script>

Notes:

This library assumes that every article you give it is about a person. You may want to use it in conjunction with wtf-plugin-classify to ensure that a page is first about a person, and not a place, or musical group:

wtf.fetch('Billy Elliot').then((doc) => {
  let res = doc.classify() // 'CreativeWork/Play'
  if (res.root === 'Person') {
    console.log(doc.birthPlace())
  }
})

For inaccurate dates, if the date is a range, finds the average rounded down; otherwise finds the minimum.

`.birthDate()`

returns month, year and date properties (also originalDate if the date is inaccurate), or a null response

looks at various person-infoboxes, like Infobox officeholder or Infobox ice hockey player
looks at first-sentence parentheses, like 'Wayne Douglas Gretzky CC (/ˈɡrɛtski/; born January 26, 1961) is a ...'
looks at category information, like 'Category:1933 births'