(skywalking-client-js) branch master updated: distinguish empty (#158)

[wusheng]

This is an automated email from the ASF dual-hosted git repository.

wusheng pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/skywalking-client-js.git


The following commit(s) were added to refs/heads/master by this push:
     new 3a88220  distinguish empty (#158)
3a88220 is described below

commit 3a88220ba3f81000c912f9c04d4e6aecf81b9f9f
Author: Fine0830 <fanxue0...@gmail.com>
AuthorDate: Thu Feb 13 13:54:41 2025 +0800

    distinguish empty (#158)
---
 src/performance/index.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/performance/index.ts b/src/performance/index.ts
index 9d914e9..0901bd8 100644
--- a/src/performance/index.ts
+++ b/src/performance/index.ts
@@ -122,12 +122,12 @@ class TracePerf {
     this.INP();
     this.CLS();
     setTimeout(() => {
-      this.coreWebMetrics.fmpTime = Math.floor(FMP.fmpTime) || 0;
+      this.coreWebMetrics.fmpTime = isNaN(FMP.fmpTime) ? -1 : 
Math.floor(FMP.fmpTime);
     }, 5000);
   }
   private CLS() {
     if (!isLayoutShiftSupported()) {
-      return this.coreWebMetrics.clsTime = 0;
+      return this.coreWebMetrics.clsTime = -1;
     }
     let partValue = 0;
     let entryList: LayoutShift[] = [];
@@ -169,7 +169,7 @@ class TracePerf {
   }
   private LCP() {
     if (!isLargestContentfulPaintSupported()) {
-      return this.coreWebMetrics.lcpTime = 0;
+      return this.coreWebMetrics.lcpTime = -1;
     }
     prerenderChangeListener(() => {
       const visibilityObserver = getVisibilityObserver();