DOM calls are cheap one at a time and slow by the thousand. Fast pages attach fewer listeners, insert in batches, rate-limit handlers and render only visible rows. Frameworks automate this, and all must keep injected markup out.
DOM calls are cheap one at a time and slow by the thousand. Fast pages attach fewer listeners, insert in batches, rate-limit handlers and render only visible rows. Frameworks automate this, and all must keep injected markup out.