diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..639900d
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..6d5e3a3
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/typescript-study.iml b/.idea/typescript-study.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/typescript-study.iml
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/random-cat/.gitignore b/random-cat/.gitignore
new file mode 100644
index 0000000..8f322f0
--- /dev/null
+++ b/random-cat/.gitignore
@@ -0,0 +1,35 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# local env files
+.env*.local
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
diff --git a/random-cat/README.md b/random-cat/README.md
new file mode 100644
index 0000000..749fbe6
--- /dev/null
+++ b/random-cat/README.md
@@ -0,0 +1,47 @@
+# TypeScript Next.js example
+
+This is a really simple project that shows the usage of Next.js with TypeScript.
+
+## Deploy your own
+
+Deploy the example using [Vercel](https://vercel.com?utm_source=github&utm_medium=readme&utm_campaign=next-example) or preview live with [StackBlitz](https://stackblitz.com/github/vercel/next.js/tree/canary/examples/with-typescript)
+
+[](https://vercel.com/new/git/external?repository-url=https://github.com/vercel/next.js/tree/canary/examples/with-typescript&project-name=with-typescript&repository-name=with-typescript)
+
+## How to use it?
+
+Execute [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app) with [npm](https://docs.npmjs.com/cli/init), [Yarn](https://yarnpkg.com/lang/en/docs/cli/create/), or [pnpm](https://pnpm.io) to bootstrap the example:
+
+```bash
+npx create-next-app --example with-typescript with-typescript-app
+```
+
+```bash
+yarn create next-app --example with-typescript with-typescript-app
+```
+
+```bash
+pnpm create next-app --example with-typescript with-typescript-app
+```
+
+Deploy it to the cloud with [Vercel](https://vercel.com/new?utm_source=github&utm_medium=readme&utm_campaign=next-example) ([Documentation](https://nextjs.org/docs/deployment)).
+
+## Notes
+
+This example shows how to integrate the TypeScript type system into Next.js. Since TypeScript is supported out of the box with Next.js, all we have to do is to install TypeScript.
+
+```
+npm install --save-dev typescript
+```
+
+To enable TypeScript's features, we install the type declarations for React and Node.
+
+```
+npm install --save-dev @types/react @types/react-dom @types/node
+```
+
+When we run `next dev` the next time, Next.js will start looking for any `.ts` or `.tsx` files in our project and builds it. It even automatically creates a `tsconfig.json` file for our project with the recommended settings.
+
+Next.js has built-in TypeScript declarations, so we'll get autocompletion for Next.js' modules straight away.
+
+A `type-check` script is also added to `package.json`, which runs TypeScript's `tsc` CLI in `noEmit` mode to run type-checking separately. You can then include this, for example, in your `test` scripts.
diff --git a/random-cat/package.json b/random-cat/package.json
new file mode 100644
index 0000000..9baf336
--- /dev/null
+++ b/random-cat/package.json
@@ -0,0 +1,20 @@
+{
+ "private": true,
+ "scripts": {
+ "dev": "next",
+ "build": "next build",
+ "start": "next start",
+ "type-check": "tsc"
+ },
+ "dependencies": {
+ "next": "latest",
+ "react": "^18.2.0",
+ "react-dom": "^18.2.0"
+ },
+ "devDependencies": {
+ "@types/node": "^12.12.21",
+ "@types/react": "^17.0.2",
+ "@types/react-dom": "^17.0.1",
+ "typescript": "^4.8.3"
+ }
+}
diff --git a/random-cat/pages/index.module.css b/random-cat/pages/index.module.css
new file mode 100644
index 0000000..81673eb
--- /dev/null
+++ b/random-cat/pages/index.module.css
@@ -0,0 +1,75 @@
+@import url("https://fonts.googleapis.com/css2?family=Zen+Maru+Gothic:wght@700&display=swap");
+
+.page {
+ display: flex;
+ justify-content: center;
+ align-items: center;
+ min-height: 100vh;
+ flex-direction: column;
+ gap: 20px;
+}
+
+.button {
+ --foreground-color: #343a40;
+ /* ボックス */
+ height: 59px;
+ width: 224px;
+ border: none;
+ padding: 5px 0 0 40px;
+ margin: 0 0 5px 0;
+ /* テキスト */
+ font-size: 16px;
+ font-family: "Zen Maru Gothic", sans-serif;
+ font-weight: bold;
+ color: var(--foreground-color);
+ /* 猫の図形 */
+ background-image: url('data:image/svg+xml;utf8,');
+ background-color: transparent;
+ /* ボタンのインタラクション */
+ cursor: pointer;
+ filter: drop-shadow(0 5px 0 var(--foreground-color));
+ transition: 0.1s;
+}
+
+.button:hover {
+ /* ホバーしたときにちょっと押し込む */
+ transform: translateY(3px);
+ filter: drop-shadow(0 3px 0 var(--foreground-color));
+}
+
+.button:active {
+ /* クリックしたときに完全に押し込む */
+ transform: translateY(5px);
+ filter: drop-shadow(0 0 0 transparent);
+}
+
+.frame {
+ width: 400px;
+ aspect-ratio: 1/1;
+ box-sizing: border-box;
+ border-radius: 8px;
+ border: 3px solid #343a40;
+ overflow: hidden;
+ /* 画像読込中に表示するもの */
+ background: repeat
+ url('data:image/svg+xml;utf8,');
+ animation: 3s scroll linear infinite;
+}
+
+.img {
+ max-inline-size: 100%;
+ min-width: 100%;
+ min-height: 100%;
+ aspect-ratio: 1/1;
+ object-fit: cover;
+}
+
+/* 画像読込中の背景を縦スクロールするためのアニメーション */
+@keyframes scroll {
+ 0% {
+ background-position: 0 0;
+ }
+ 100% {
+ background-position: 0 90px;
+ }
+}
\ No newline at end of file
diff --git a/random-cat/pages/index.tsx b/random-cat/pages/index.tsx
new file mode 100644
index 0000000..77ea19f
--- /dev/null
+++ b/random-cat/pages/index.tsx
@@ -0,0 +1,57 @@
+import { GetServerSideProps, NextPage } from "next";
+import { useState } from "react";
+import styles from "./index.module.css";
+
+// getServerSidePropsから渡されるpropsの型
+type Props = {
+ initialImageUrl: string;
+};
+
+// ページコンポーネント関数にpropsを受け取る引数を追加する
+const IndexPage: NextPage = ({ initialImageUrl }) => {
+ const [imageUrl, setImageUrl] = useState(initialImageUrl); // 初期値を渡す
+ const [loading, setLoading] = useState(false); // 初期状態はfalseにしておく
+ // useEffect(() => {
+ // fetchImage().then((newImage) => {
+ // setImageUrl(newImage.url);
+ // setLoading(false);
+ // });
+ // }, []);
+ const handleClick = async () => {
+ setLoading(true);
+ const newImage = await fetchImage();
+ setImageUrl(newImage.url);
+ setLoading(false);
+ };
+ return (
+
+
+
+ {loading ||
}
+
+