Need to check if processing instruction `<?covid19?>` is present in XML or not – Jquery
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.1d1 20130915//EN" "JATS-journalpublishing1.dtd"[]> <article dtd-version="1.1d1" article-type="review-article" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en"> <front> <?covid19?> I need to find if the <?covid19?> processing instruction is present in the XML or not. Pseudo-code…