refactor(perf): assign value in if block (vuejs#10836)

Plumbiu · lynxlangya · commit 7a29f318c8d9 · 2024-05-30T10:00:51.000+08:00
diff --git a/packages/shared/src/normalizeProp.ts b/packages/shared/src/normalizeProp.ts
@@ -51,8 +51,8 @@ export function stringifyStyle(
   }
   for (const key in styles) {
     const value = styles[key]
-    const normalizedKey = key.startsWith(`--`) ? key : hyphenate(key)
     if (isString(value) || typeof value === 'number') {
+      const normalizedKey = key.startsWith(`--`) ? key : hyphenate(key)
       // only render valid values
       ret += `${normalizedKey}:${value};`
     }

Original file line number	Diff line number	Diff line change
`@@ -51,8 +51,8 @@ export function stringifyStyle(`
`51`	`51`	`}`
`52`	`52`	`for (const key in styles) {`
`53`	`53`	`const value = styles[key]`
`54`		- const normalizedKey = key.startsWith(`--`) ? key : hyphenate(key)
`55`	`54`	`if (isString(value) \|\| typeof value === 'number') {`
	`55`	+ const normalizedKey = key.startsWith(`--`) ? key : hyphenate(key)
`56`	`56`	`// only render valid values`
`57`	`57`	ret += `${normalizedKey}:${value};`
`58`	`58`	`}`