const check = require('unclosed-markup');

// input as a string
check('<div><a></div>')
    .then(() => {})
    .catch(errors => console.error(errors));

// or input as a readstream
check(readstream)
    .then(() => {})
    .catch(errors => console.error(errors));

// arrays are also supported
check(['<div><a></div>', '<div><a></div>'])
    .then(() => {})
    .catch(errors => console.error(errors));