[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [HeapProfiler](./puppeteer.protocol.heapprofiler.md) > [SamplingHeapProfileNode](./puppeteer.protocol.heapprofiler.samplingheapprofilenode.md) > [id](./puppeteer.protocol.heapprofiler.samplingheapprofilenode.id.md) ## Protocol.HeapProfiler.SamplingHeapProfileNode.id property Node id. Ids are unique across all profiles collected between startSampling and stopSampling. Signature: ```typescript id: integer; ```