D3.jsのd3.format便利ですよね。良く使う桁数の指定やゼロ埋めが少し分かりづらかったのでQiitaにまとめます。 d3.format("01d")(1); // 1 d3.format("02d")(1); // 01 d3.format("03d")(1); // 001 d3.format(".0d")(100); // 100 d3.format(".1d")(100); // 100 d3.format(".2d")(100); // 100 d3.format(".0f")(100); // 100 d3.format(".1f")(100); // 100.0 d3.format(".2f")(100); // 100.00 d3.format(".0%")(1); // 100% d3.format(".1%")(1); // 100.0% d3.format(".
![D3.jsのformatを整理 - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/ab56157e8e841efc15bcebdefe8f40363e0c3e0a/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-9f5428127621718a910c8b63951390ad.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTkxNiZoPTMzNiZ0eHQ9RDMuanMlRTMlODElQUVmb3JtYXQlRTMlODIlOTIlRTYlOTUlQjQlRTclOTAlODYmdHh0LWNvbG9yPSUyMzIxMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT01NiZ0eHQtY2xpcD1lbGxpcHNpcyZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPWRjMmYwZDU3NjZhMThhYTUzMzdlMDRkZDc4OWM1NmE2%26mark-x%3D142%26mark-y%3D112%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTYxNiZ0eHQ9JTQwdGtvc3VnYSU0MGdpdGh1YiZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTM2JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9MTAwMDAyNWFlMDlmYjE4ZWI3ODMwNWEyMmJhNzY4N2U%26blend-x%3D142%26blend-y%3D491%26blend-mode%3Dnormal%26s%3D6699e8ab7a83a53f957b8fbd7f0c7921)