added type definition

src/lib/DamageCalculator.svelte

@@ -2,9 +2,10 @@
   import { invoke } from "@tauri-apps/api/tauri";
   import AutoComplete from "simple-svelte-autocomplete";
   import attack_types from "../const/attack_types.json";
+  import type { PokemonData } from "../model/PokemonStatus";
 
-  export let player1Data;
-  export let player2Data;
+  export let player1Data: PokemonData | undefined;
+  export let player2Data: PokemonData | undefined;
   let attackData;
   $: {
     if (myValue > 0 && myValue !== currentValue) {
@@ -62,13 +63,13 @@
       minDamage: 0,
       // 攻撃側タイプ
       // TODO: try catchでエラーハンドリング
-      atk_type: JSON.parse(attacker.types), // 配列なのでjson parse
+      atk_type: attacker.types,
       atk_terastype: attacker.terastype,
       // 防御側タイプ
       def_type:
         defender.terastype[0] > 0
           ? defender.terastype
-          : JSON.parse(defender.types),
+          : defender.types,
 
       // 技タイプ
       move_type: JSON.parse(attackData.types),