Sweet.jsはJavaScriptでマクロ機能を実現するライブラリです。 JavaScriptでSchemeやRustのようなマクロを実現するライブラリがSweet.jsです。柔軟に自前の構文を定義できるようになります。 インストールします。 例です。idというマクロを定義します。 sjsコマンドでコンパイルします。確かに展開されました。 次はmというマクロを定義します。 こちらも展開されました。 変数を定義するマクロです。 関数を定義するdefというマクロを作ると… functionに置き換わります。長ったらしい名称からおさらばです。 Sweet.jsを使うと既存のJavaScriptの中にマクロを組み込めるようになります。そしてコンパイルを実行することでマクロ部を展開して利用できます。よりJavaScriptを柔軟に使いこなせるようになりそうです。 Sweet.jsはJavaScr
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