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cemms1
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Sep 2, 2025
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| const sampling = 1 / 100; | ||
| /** defining this here allows to share this with other metrics */ | ||
| const willRecordCoreWebVitals = Math.random() < sampling; |
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This is used for both CWV and commercial metrics so better to have a value that covers both. Additionally, this is not the only reason the metrics might be recorded; this simply represents whether the page view is in the sample or not
cemms1
commented
Sep 2, 2025
| if (isUndefined(pageViewId)) return; | ||
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| const bypassSampling = shouldBypassSampling(abTestApi); | ||
| const recordMetrics = isInSample || shouldBypassSampling(abTestApi); |
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The logic determining whether metrics will be recorded is:
- is the page view in the sample?
- should the sampling be bypassed? ie should metrics be collected for all page views for a particular scenario?
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"This PR is stale because it has been open 30 days with no activity. Unless a comment is added or the “stale” label removed, this will be closed in 3 days" |
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This PR was closed because it has been stalled for 3 days with no activity. |
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What does this change?
Renames
bypassSamplingtorecordMetricsas this better represents what this value means.Introduces another value
isInSampleto replacewillRecordCoreWebVitalssince this is used for both commercial metrics and core web vitals, and represents whether the request is in the sample or not.Additionally takes this value
isInSampleout of thebypassSamplingdecision seeing as these are two distinct things - in order to record metrics, you should either be in the sample or if not, the sampling should be bypassed in order to record all metricsWhy?
Making the code more easy to understand for future developers