Stringを[[Uint8Array]]に変換するには[[TextEncoder]]を使う。 ```ts const str = "tést" const buf = new TextEncoder().encode(str) // ^? const buf: Uint8Array ``` <button class="playground"><a href="https://www.typescriptlang.org/play?#code/MYewdgzgLgBNBOMC8MBEUCX1UChSVgCMBXAM2RjAFMB3GAFSoA8oBRMUAEyvgAoBKAHRUOIbrwT8cAemkx58gHoB+HEA">Playground</a></button> ```ts const str = "tést" const buf = new TextEncoder().encode(str) // ^? const arrayBuf = buf.buffer // ^? ``` <button class="playground"><a href="https://www.typescriptlang.org/play?#code/MYewdgzgLgBNBOMC8MBEUCX1UChSVgCMBXAM2RjAFMB3GAFSoA8oBRMUAEyvgAoBKAHRUOIbrwT8cAemkx58gHoB+HHnDQYAQ3jwtATwBCZCiVKCzpHjLkKYKoA">Playground</a></button> ## MOC - [[JavaScriptでUint8ArrayをStringに変換]]