The HTMLInputElement.labels read-only property returns a NodeList of the <label> elements associated with the <input> element, if the element is not hidden. If the element has the type hidden, the property returns null.
A NodeList containing the <label> elements associated with the <input> element.
<label id="label1" for="test">Label 1</label>
<input id="test" />
<label id="label2" for="test">Label 2</label>const input = document.getElementById("test");
for (const label of input.labels) {
console.log(label.textContent); // "Label 1" and "Label 2"
}