fix: fix bug from #120 that appeared in production bundle only

smeijer · smeijer · commit 279a09e31f32 · 2020-06-09T15:13:19.000+02:00
diff --git a/src/lib/logger.js b/src/lib/logger.js
@@ -39,7 +39,9 @@ function formatTime(time) {
 }
 
 // Use performance API if it's available in order to get better precision
-const timer = typeof performance?.now === 'function' ? performance : Date;
+//   performance can be null, performance?.now won't work here!
+const timer =
+  (typeof performance || {}).now === 'function' ? performance : Date;
 
 function renderDiff(diff) {
   const { kind, path, lhs, rhs, index, item } = diff;

Original file line number	Diff line number	Diff line change
`@@ -39,7 +39,9 @@ function formatTime(time) {`
`39`	`39`	`}`
`40`	`40`
`41`	`41`	`// Use performance API if it's available in order to get better precision`
`42`		`-const timer = typeof performance?.now === 'function' ? performance : Date;`
	`42`	`+// performance can be null, performance?.now won't work here!`
	`43`	`+const timer =`
	`44`	`+ (typeof performance \|\| {}).now === 'function' ? performance : Date;`
`43`	`45`
`44`	`46`	`function renderDiff(diff) {`
`45`	`47`	`const { kind, path, lhs, rhs, index, item } = diff;`