document object js code example

Example 1: what is document object

document.anchors			Returns all <a> elements that have a name attribute	1
document.applets			Returns all <applet> elements (Deprecated in HTML5)	1
document.baseURI			Returns the absolute base URI of the document	3
document.body				Returns the <body> element	1
document.cookie				Returns the document's cookie	1
document.doctype			Returns the document's doctype	3
document.documentElement	Returns the <html> element	3
document.documentMode		Returns the mode used by the browser	3
document.documentURI		Returns the URI of the document	3
document.domain				Returns the domain name of the document server	1
document.embeds				Returns all <embed> elements	3
document.forms				Returns all <form> elements	1
document.head				Returns the <head> element	3
document.images				Returns all <img> elements	1
document.implementation		Returns the DOM implementation	3
document.inputEncoding		Returns the document's encoding (character set)	3
document.lastModified		Returns the date and time the document was updated	3
document.links				Returns all <area> and <a> elements that have a href attribute	1
document.readyState			Returns the (loading) status of the document	3
document.referrer			Returns the URI of the referrer (the linking document)	1
document.scripts			Returns all <script> elements	3
document.strictErrorChecking	Returns if error checking is enforced	3
document.title				Returns the <title> element	1
document.URL				Returns the complete URL of the document	1

Example 2: JavaScript and HTML DOM Reference

const contacts = ['Chris:2232322', 'Sarah:3453456', 'Bill:7654322', 'Mary:9998769', 'Dianne:9384975'];
const para = document.querySelector('p');
const input = document.querySelector('input');
const btn = document.querySelector('button');

btn.addEventListener('click', function() {
  let searchName = input.value.toLowerCase();
  input.value = '';
  input.focus();
  for (let i = 0; i < contacts.length; i++) {
    let splitContact = contacts[i].split(':');
    if (splitContact[0].toLowerCase() === searchName) {
      para.textContent = splitContact[0] + '\'s number is ' + splitContact[1] + '.';
      break;
    } else {
      para.textContent = 'Contact not found.';
    }
  }
});

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