Check for XML errors using JavaScript

Question

Question: How do I syntax-check my XML in modern browsers (anything but IE)?

I\'ve seen a page on W3Schools which includes an XML syntax-checker. I don\'t kno

Answer 1

Just F12 to enter developer mode and check the source there you can then search validateXML and you are to locate a very long complete XML checker for your reference.

I am using react and stuff using the DOMParser to present the error message as:

  handleXmlCheck = () => {
    const { fileContent } = this.state;
    const parser = new window.DOMParser();
    const theDom = parser.parseFromString(fileContent, 'application/xml');
    if (theDom.getElementsByTagName('parsererror').length > 0) {
      showErrorMessage(theDom.getElementsByTagName('parsererror')[0].getElementsByTagName('div')[0].innerHTML);
    } else {
      showSuccessMessage('Valid Xml');
    }
  }