[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [DOM](./puppeteer.protocol.dom.md) > [CollectClassNamesFromSubtreeRequest](./puppeteer.protocol.dom.collectclassnamesfromsubtreerequest.md) > [nodeId](./puppeteer.protocol.dom.collectclassnamesfromsubtreerequest.nodeid.md) ## Protocol.DOM.CollectClassNamesFromSubtreeRequest.nodeId property Id of the node to collect class names. Signature: ```typescript nodeId: NodeId; ```