//just a quick function for copy/pasting into the console
function xpath(path, root) { return document.evaluate(path, root || document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; }
//more js-styled functions
function getElementsByXPath(xpath, parent) {
let results = [];
let query = document.evaluate(xpath, parent || document,
null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
for (let i = 0, length = query.snapshotLength; i < length; ++i) {
results.push(query.snapshotItem(i));
}
return results;
}
function getElementByXPath(path, root) {
return document.evaluate(path, root || document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
}