web browserから任意のデータをdownloadするscript

code:script.js

export const downloadObject = (object, name = "import.json") => {

// 後始末の自動化

using stack = new DisposableStack();

// download dataを作成

const blob = new Blob(JSON.stringify(object), { type: "octet/stream" });

// download linkを生成

const url = stack.adopt(

URL.createObjectURL(snapshots),

(url) => URL.revokeObjectURL(url),

);

// 隠しa要素を使ってdownloadする

const a = stack.adopt(

document.createElement("a"),

(a) => a.remove(),

);

a.href = url;

a.download = name;

a.style.display = "none";

document.body.append(a);

// downloadを実行

a.click();

};