Selection.addRange()

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

Syntax

selection.addRange(range);

Parameters

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

Example

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

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', function () {
  let selection = window.getSelection();
  let strongs = document.getElementsByTagName('strong');

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

  for (let i = 0; i < strongs.length; i++) {
    let range = document.createRange();
    range.selectNode(strongs[i]);
    selection.addRange(range);
  }
});

Result

Specifications

Specification
Selection API # dom-selection-addrange

Browser compatibility

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