DefinitelyTyped/types/get-node-dimensions/get-node-dimensions-tests.ts

import getNodeDimensions = require('get-node-dimensions');

const div = document.getElementById('div-to-measure');

if (div !== null) {
  const dimensions = getNodeDimensions(div);
}

if (div !== null) {
  const dimensionsWithMargin = getNodeDimensions(div, {margin: true});
}