perf: prefer typed array

Author: ChALkeR

fallback/windows1252.js

@@ -3,12 +3,12 @@ import { isHermes } from './_utils.js'
 
 // 0x80-0x9f is the Windows1252 byte range that maps differently from Latin1 / Unicode subset
 // prettier-ignore
-const map = [
+const map = Uint16Array.of(
   0x20_ac, 0x00_81, 0x20_1a, 0x01_92, 0x20_1e, 0x20_26, 0x20_20, 0x20_21, // 0x80 - 0x87
   0x02_c6, 0x20_30, 0x01_60, 0x20_39, 0x01_52, 0x00_8d, 0x01_7d, 0x00_8f, // 0x88 - 0x8F
   0x00_90, 0x20_18, 0x20_19, 0x20_1c, 0x20_1d, 0x20_22, 0x20_13, 0x20_14, // 0x90 - 0x97
   0x02_dc, 0x21_22, 0x01_61, 0x20_3a, 0x01_53, 0x00_9d, 0x01_7e, 0x01_78, // 0x98 - 0x9F
-]
+)
 
 function mappedCopy(arr, start = 0) {
   const out = Uint16Array.from(start === 0 ? arr : arr.subarray(start)) // copy to modify in-place, also those are 16-bit now