perf: parseAccept without spread operator (#3003)

* perf: parseAccept without spread operator

* fix: format

* fix: review

src/helper/accepts/accepts.ts

@@ -29,14 +29,22 @@ export const parseAccept = (acceptHeader: string): Accept[] => {
   // Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
   const accepts = acceptHeader.split(',') // ['text/html', 'application/xhtml+xml', 'application/xml;q=0.9', 'image/webp', '*/*;q=0.8']
   return accepts.map((accept) => {
-    const [type, ...params] = accept.trim().split(';') // ['application/xml', 'q=0.9']
-    const q = params.find((param) => param.startsWith('q=')) // 'q=0.9'
+    const parts = accept.trim().split(';') // ['text/html', 'q=0.9', 'image/webp']
+    const type = parts[0] // text/html
+    const params = parts.slice(1) // ['q=0.9', 'image/webp']
+    const q = params.find((param) => param.startsWith('q='))
+
+    const paramsObject = params.reduce((acc, param) => {
+      const keyValue = param.split('=')
+      const key = keyValue[0].trim()
+      const value = keyValue[1].trim()
+      acc[key] = value
+      return acc
+    }, {} as { [key: string]: string })
+
     return {
-      type,
-      params: params.reduce((acc, param) => {
-        const [key, value] = param.split('=')
-        return { ...acc, [key.trim()]: value.trim() }
-      }, {}),
+      type: type,
+      params: paramsObject,
       q: q ? parseFloat(q.split('=')[1]) : 1,
     }
   })