To obtain the text from all elements returned by a xpath as a promise in Javascript, we can use the following code:
const xpath = 'your_xpath_expression';
const elements = document.evaluate(xpath, document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
const promises = [];
for (let i = 0; i < elements.snapshotLength; i++) {
const element = elements.snapshotItem(i);
const textPromise = new Promise((resolve, reject) => {
resolve(element.textContent);
});
promises.push(textPromise);
}
Promise.all(promises).then((texts) => {
console.log(texts);
});
This code uses the evaluate()
method to get all the elements returned by the xpath expression. It then creates a new promise for each element, resolving with the text content of the element. These promises are stored in an array of promises. Finally, the Promise.all()
method is used to wait for all promises to resolve and return the array of texts.
Asked: 2023-02-19 11:00:00 +0000
Seen: 9 times
Last updated: Mar 30 '22