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React + Next.jsで画像をimportする

Last updated at Posted at 2019-10-20

困ったこと

Reactで画像のパスが読み込めない

logo.tsx
const logo = require('../../assets/images/logo.png')
// =>
// [ error ] ./src/assets/images/logo.png 1:0
// Module parse failed: Unexpected character '�' (1:0)
// You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See 
// https://webpack.js.org/concepts#loaders
// (Source code omitted for this binary file)

原因

画像ファイルのパスをパースできない

解決

  1. url-loaderを追加する
  2. next.config.js にその設定を追加する
yarn add url-loader
next.config.json
module.exports = withSass(withTypescript({
    [...]
    // ここから
    config.module.rules.push({
      test: /\.(png|jpg|gif|svg)$/,
      use: {
        loader: 'url-loader',
        options: {
          limit: 100000
        }
      }
    })
    // ここまで

    return config;
  }
}));

画像の読み込み方について

importよりrequire使った方がよさそう。

logo.tsx
const logo = require('../../assets/images/logo.png')

参考ページ

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