distinguish empty (#158)

Fine0830 · web-flow · commit 3a88220ba3f8 · 2025-02-13T13:54:41.000+08:00
diff --git 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();

Original file line number	Diff line number	Diff line change
`@@ -122,12 +122,12 @@ class TracePerf {`
`122`	`122`	`this.INP();`
`123`	`123`	`this.CLS();`
`124`	`124`	`setTimeout(() => {`
`125`		`- this.coreWebMetrics.fmpTime = Math.floor(FMP.fmpTime) \|\| 0;`
	`125`	`+ this.coreWebMetrics.fmpTime = isNaN(FMP.fmpTime) ? -1 : Math.floor(FMP.fmpTime);`
`126`	`126`	`}, 5000);`
`127`	`127`	`}`
`128`	`128`	`private CLS() {`
`129`	`129`	`if (!isLayoutShiftSupported()) {`
`130`		`- return this.coreWebMetrics.clsTime = 0;`
	`130`	`+ return this.coreWebMetrics.clsTime = -1;`
`131`	`131`	`}`
`132`	`132`	`let partValue = 0;`
`133`	`133`	`let entryList: LayoutShift[] = [];`
`@@ -169,7 +169,7 @@ class TracePerf {`
`169`	`169`	`}`
`170`	`170`	`private LCP() {`
`171`	`171`	`if (!isLargestContentfulPaintSupported()) {`
`172`		`- return this.coreWebMetrics.lcpTime = 0;`
	`172`	`+ return this.coreWebMetrics.lcpTime = -1;`
`173`	`173`	`}`
`174`	`174`	`prerenderChangeListener(() => {`
`175`	`175`	`const visibilityObserver = getVisibilityObserver();`