Selection: addRange() method

The Selection.addRange() method adds a Range to a Selection.

Syntax

addRange(range)

Parameters

range: A Range object that will be added to the Selection.

Return value

None (undefined).

Examples

Note: Currently only Firefox supports multiple selection ranges, other browsers will not add new ranges to the selection if it already contains one.

HTML

html

<p>
  I <strong>insist</strong> that you <strong>try</strong> selecting the
  <strong>strong words</strong>.
</p>
<button>Select strong words</button>

JavaScript

let button = document.querySelector("button");

button.addEventListener("click", () => {
  const selection = window.getSelection();
  const strongs = document.getElementsByTagName("strong");

  if (selection.rangeCount > 0) {
    selection.removeAllRanges();
  }

  for (const node of strongs) {
    const range = document.createRange();
    range.selectNode(node);
    selection.addRange(range);
  }
});

Result

Specifications

Specification
Selection API # dom-selection-addrange

Browser compatibility

BCD tables only load in the browser