ゴール コンソールで「Hello World!」と出力するだけのGoogle Chrome拡張が出来上がる。なお、今回の成果物はGitHubのsuin/chrome-extension-playgroundに置いた。 1. 必要最低限のファイルを作る 適当なディレクトリに、background.jsとmanifest.jsonとアイコン画像を作る。 ├── background.js ├── icons │ ├── icon128.png │ ├── icon16.png │ ├── icon19.png │ └── icon48.png └── manifest.json
![Chrome拡張開発: Hello Worldするだけの拡張を作りたい - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/508725606429e0145e4a51058b04244ce010d86f/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9Q2hyb21lJUU2JThCJUExJUU1JUJDJUI1JUU5JTk2JThCJUU3JTk5JUJBJTNBJTIwSGVsbG8lMjBXb3JsZCVFMyU4MSU5OSVFMyU4MiU4QiVFMyU4MSVBMCVFMyU4MSU5MSVFMyU4MSVBRSVFNiU4QiVBMSVFNSVCQyVCNSVFMyU4MiU5MiVFNCVCRCU5QyVFMyU4MiU4QSVFMyU4MSU5RiVFMyU4MSU4NCZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTU2JnM9MmM2OGFiMmZlMWQ5NjYxNTQ1YzNlMWVjMDI2ZWI5OWQ%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBzdWluJnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9MzYmdHh0LWFsaWduPWxlZnQlMkN0b3Amcz0wMmNiMDRkYmM5YTE5NjlkMWUyMzlhNTg4NGFiYzQ4ZA%26blend-x%3D142%26blend-y%3D436%26blend-mode%3Dnormal%26txt64%3DaW4gQ3JhZnRzbWFuIFNvZnR3YXJl%26txt-width%3D770%26txt-clip%3Dend%252Cellipsis%26txt-color%3D%2523212121%26txt-font%3DHiragino%2520Sans%2520W6%26txt-size%3D36%26txt-x%3D156%26txt-y%3D536%26s%3D2a6c8b781c56e90bc7fbae57583bc85f)