@datadog/browser-rum-core - npm Package Compare versions

Comparing version 5.5.0 to 5.5.1

cjs/browser/performanceCollection.d.ts

@@ -72,2 +72,3 @@ import type { Duration, RelativeTime } from '@datadog/browser-core';
     element?: Element;
+    toJSON(): Omit<PerformanceEntry, 'toJSON'>;
 }
@@ -74,0 +75,0 @@ export interface RumFirstInputTiming {

cjs/domain/assembly.js

@@ -57,3 +57,3 @@ "use strict";
                     },
-                    browser_sdk_version: (0, browser_core_1.canUseEventBridge)() ? "5.5.0" : undefined,
+                    browser_sdk_version: (0, browser_core_1.canUseEventBridge)() ? "5.5.1" : undefined,
                 },
@@ -60,0 +60,0 @@ application: {

cjs/domain/view/viewMetrics/trackLargestContentfulPaint.js

@@ -10,2 +10,4 @@ "use strict";
 exports.LCP_MAXIMUM_DELAY = 10 * browser_core_1.ONE_MINUTE;
+var zeroLcpReported = false;
+var previousNonZeroLcp;
 /**
@@ -37,2 +39,5 @@ * Track the largest contentful paint (LCP) occurring during the initial View.  This can yield
             }
+            if ((0, browser_core_1.isExperimentalFeatureEnabled)(browser_core_1.ExperimentalFeature.ZERO_LCP_TELEMETRY)) {
+                monitorZeroLcpEntry(lcpEntry);
+            }
             callback({
@@ -52,2 +57,21 @@ value: lcpEntry.startTime,
 exports.trackLargestContentfulPaint = trackLargestContentfulPaint;
+function monitorZeroLcpEntry(lcpEntry) {
+    if (!zeroLcpReported && lcpEntry.startTime !== 0) {
+        previousNonZeroLcp = lcpEntry.toJSON();
+    }
+    if (!zeroLcpReported && lcpEntry.startTime === 0) {
+        zeroLcpReported = true;
+        (0, browser_core_1.addTelemetryDebug)('LCP with startTime = 0', {
+            debug: {
+                entry: lcpEntry.toJSON(),
+                previousNonZeroLcp: previousNonZeroLcp,
+                navigationStart: performance.timing.navigationStart,
+                timeOrigin: performance.timeOrigin,
+                now: (0, browser_core_1.relativeNow)(),
+                visibilityState: document.visibilityState,
+                prerendering: document.prerendering,
+            },
+        });
+    }
+}
 //# sourceMappingURL=trackLargestContentfulPaint.js.map

esm/browser/performanceCollection.d.ts

@@ -72,2 +72,3 @@ import type { Duration, RelativeTime } from '@datadog/browser-core';
     element?: Element;
+    toJSON(): Omit<PerformanceEntry, 'toJSON'>;
 }
@@ -74,0 +75,0 @@ export interface RumFirstInputTiming {

esm/domain/assembly.js

@@ -54,3 +54,3 @@ import { combine, isEmptyObject, timeStampNow, currentDrift, display, createEventRateLimiter, canUseEventBridge, assign, round, } from '@datadog/browser-core';
                     },
-                    browser_sdk_version: canUseEventBridge() ? "5.5.0" : undefined,
+                    browser_sdk_version: canUseEventBridge() ? "5.5.1" : undefined,
                 },
@@ -57,0 +57,0 @@ application: {

esm/domain/view/viewMetrics/trackLargestContentfulPaint.js

@@ -1,2 +0,2 @@
-import { DOM_EVENT, ONE_MINUTE, addEventListeners, findLast } from '@datadog/browser-core';
+import { DOM_EVENT, ExperimentalFeature, ONE_MINUTE, addEventListeners, addTelemetryDebug, findLast, isExperimentalFeatureEnabled, relativeNow, } from '@datadog/browser-core';
 import { RumPerformanceEntryType } from '../../../browser/performanceCollection';
@@ -7,2 +7,4 @@ import { getSelectorFromElement } from '../../getSelectorFromElement';
 export var LCP_MAXIMUM_DELAY = 10 * ONE_MINUTE;
+var zeroLcpReported = false;
+var previousNonZeroLcp;
 /**
@@ -34,2 +36,5 @@ * Track the largest contentful paint (LCP) occurring during the initial View.  This can yield
             }
+            if (isExperimentalFeatureEnabled(ExperimentalFeature.ZERO_LCP_TELEMETRY)) {
+                monitorZeroLcpEntry(lcpEntry);
+            }
             callback({
@@ -48,2 +53,21 @@ value: lcpEntry.startTime,
 }
+function monitorZeroLcpEntry(lcpEntry) {
+    if (!zeroLcpReported && lcpEntry.startTime !== 0) {
+        previousNonZeroLcp = lcpEntry.toJSON();
+    }
+    if (!zeroLcpReported && lcpEntry.startTime === 0) {
+        zeroLcpReported = true;
+        addTelemetryDebug('LCP with startTime = 0', {
+            debug: {
+                entry: lcpEntry.toJSON(),
+                previousNonZeroLcp: previousNonZeroLcp,
+                navigationStart: performance.timing.navigationStart,
+                timeOrigin: performance.timeOrigin,
+                now: relativeNow(),
+                visibilityState: document.visibilityState,
+                prerendering: document.prerendering,
+            },
+        });
+    }
+}
 //# sourceMappingURL=trackLargestContentfulPaint.js.map

package.json

 {
   "name": "@datadog/browser-rum-core",
-  "version": "5.5.0",
+  "version": "5.5.1",
   "license": "Apache-2.0",
@@ -15,3 +15,3 @@ "main": "cjs/index.js",
   "dependencies": {
-    "@datadog/browser-core": "5.5.0"
+    "@datadog/browser-core": "5.5.1"
   },
@@ -32,3 +32,3 @@ "devDependencies": {
   },
-  "gitHead": "7b824d7ff3e7b535e4f6b4d77f16bf1ceb0c9242"
+  "gitHead": "1c876be1b0f5ffd4b3a49b2f74c912598065755d"
 }

src/browser/performanceCollection.ts

@@ -99,2 +99,3 @@ import type { Duration, RelativeTime, TimeStamp } from '@datadog/browser-core'
   element?: Element
+  toJSON(): Omit<PerformanceEntry, 'toJSON'>
 }
@@ -101,0 +102,0 @@

src/domain/view/viewMetrics/trackLargestContentfulPaint.ts

 import type { RelativeTime } from '@datadog/browser-core'
-import { DOM_EVENT, ONE_MINUTE, addEventListeners, findLast } from '@datadog/browser-core'
+import {
+  DOM_EVENT,
+  ExperimentalFeature,
+  ONE_MINUTE,
+  addEventListeners,
+  addTelemetryDebug,
+  findLast,
+  isExperimentalFeatureEnabled,
+  relativeNow,
+} from '@datadog/browser-core'
 import { LifeCycleEventType } from '../../lifeCycle'
@@ -19,2 +28,6 @@ import type { LifeCycle } from '../../lifeCycle'
 }
+
+let zeroLcpReported = false
+let previousNonZeroLcp: Omit<PerformanceEntry, 'toJSON'> | undefined
+
 /**
@@ -65,2 +78,6 @@ * Track the largest contentful paint (LCP) occurring during the initial View.  This can yield
 
+        if (isExperimentalFeatureEnabled(ExperimentalFeature.ZERO_LCP_TELEMETRY)) {
+          monitorZeroLcpEntry(lcpEntry)
+        }
+
         callback({
@@ -81,1 +98,23 @@ value: lcpEntry.startTime,
 }
+
+function monitorZeroLcpEntry(lcpEntry: RumLargestContentfulPaintTiming) {
+  if (!zeroLcpReported && lcpEntry.startTime !== 0) {
+    previousNonZeroLcp = lcpEntry.toJSON()
+  }
+
+  if (!zeroLcpReported && lcpEntry.startTime === 0) {
+    zeroLcpReported = true
+
+    addTelemetryDebug('LCP with startTime = 0', {
+      debug: {
+        entry: lcpEntry.toJSON(),
+        previousNonZeroLcp,
+        navigationStart: performance.timing.navigationStart,
+        timeOrigin: performance.timeOrigin,
+        now: relativeNow(),
+        visibilityState: document.visibilityState,
+        prerendering: (document as any).prerendering,
+      },
+    })
+  }
+}

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Improved metrics

Total package byte prevSize

1194960

increased by0.38%

Lines of code

21761

increased by0.39%

Dependency changes

• + Added@datadog/browser-core@5.5.1(transitive)

• - Removed@datadog/browser-core@5.5.0(transitive)

• Updated@datadog/browser-core@5.5.1