This will get the property name of meta tag and it will take that value and set the input value.

meta-tag-to-input.js

function getMeta(metaName) {
  const metas = document.getElementsByTagName('meta');

  for (let i = 0; i < metas.length; i++) {
    if (metas[i].getAttribute('property') === metaName) {
      return metas[i].getAttribute('content');
    }
  }

  return '';
}
document.querySelectorAll('input[name=text]')[0].value = getMeta("og:title");