How can I use querySelectorAll() to select all links that have a specific attribute or attribute value (e.g., all links with a target="_blank" attribute)?

You use querySelectorAll() with a specific attribute selector to select all links that have a specific attribute or attribute value. For example, to select all links with a target="_blank" attribute, use the following code:

```javascript
const linksWithBlankTarget = document.querySelectorAll('a[target="_blank"]');

// After this you can loop through the links and perform any action you want.
linksWithBlankTarget.forEach(link => {
// Do something with each link
console.log(link.href);
});
```

The code first selects all anchor tags (`<a>`) that have a `target` attribute with the value `"_blank"`. Then it logs the `href` attribute of each link.