JavaScriptでURLパラメータ(GET値)を取得する方法

let url = new URL(window.location.href);
let params = url.searchParams;
let value = params.get('key');
let params = new URLSearchParams(document.location.search);
let value = params.get('key');

https://developer.mozilla.org/ja/docs/Web/API/URLSearchParams/get

目次