HTMLCollection.namedItem()

const item = collection.namedItem(key);

<div id="personal">
  <span name="title">Dr.</span>
  <span name="firstname">John</span>
  <span name="lastname">Doe</span>
  <span id="degree">(MD)</span>
</div>

const container = document.getElementById('personal');

// Returns the HTMLSpanElement with the name "title" if no such element exists null is returned
const titleSpan = container.children.namedItem('title');

// The following variants return undefined instead of null if there's no element with a matching name or id
const firstnameSpan = container.children['firstname'];
const lastnameSpan = container.children.lastname;

// Returns the span element with the id "degree"
const degreeSpan = container.children.namedItem('degree');

const output = document.createElement('div');
output.textContent = `Result: ${titleSpan.textContent}${firstnameSpan.textContent}${lastnameSpan.textContent}${degreeSpan.textContent}`;

container.insertAdjacentElement('afterend', output);