1月 2017 - リジェクト東京

</p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><span class="screen-reader-text">投稿者 </span> <a class="url fn n" href="https://reject.tokyo/author/iosmaster/">Nolan.B</a></span></span><span class="posted-on"><span class="screen-reader-text">投稿日: </span><a href="https://reject.tokyo/speed_check/" rel="bookmark"><time class="entry-date published" datetime="2017-01-01T09:02:49+09:00">2017年1月1日</time><time class="updated" datetime="2019-10-09T09:05:17+09:00">2019年10月9日</time></a></span><span class="cat-links"><span class="screen-reader-text">カテゴリー </span><a href="https://reject.tokyo/category/%e6%9c%aa%e5%88%86%e9%a1%9e/" rel="category tag">未分類</a></span><span class="comments-link"><a href="https://reject.tokyo/speed_check/#respond"><span class="screen-reader-text">通信回線速度チェックに</span>コメント</a></span> </footer> </article> </main> </div> <aside id="secondary" class="sidebar widget-area" role="complementary"> <section id="custom_html-18" 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widget_custom_html"><h2 class="widget-title">ピクセル→ミリ変換</h2><div class="textwidget custom-html-widget"> <form id="form1" action="#"> <input type="text" id="input_width" value="" placeholder="width pixel"> <input type="text" id="input_height" value="" placeholder="height pixel"><br> <input type="button" onclick="func_calc()" value="300dpiで計算"> </form> <div id="information_message"></div> <textarea readonly name='contents' id='output_size' onclick='this.select();' rows='1' cols='20' hidden=true > result </textarea> <script language="javascript" type="text/javascript"> function func_calc() { var text_info = document.getElementById("information_message"); var text_result = document.getElementById("output_size"); var px_width = parseInt(document.getElementById("input_width").value); if (isNaN(px_width)){ text_info.innerHTML = "横幅を半角数字で指定してください"; return; } var px_height = parseInt(document.getElementById("input_height").value); if (isNaN(px_height)){ text_info.innerHTML = "縦幅を半角数字で指定してください"; return; } text_info.innerHTML = "下の結果をクリックしてください"; text_result.hidden = false; //ピクセルをミリに変換 var mm_width = 25.4 / 300 * px_width; var mm_height = 25.4 / 300 * px_height; console.log(mm_width); console.log(mm_height); //結果作成 result_size = mm_width.toFixed(2) + "x" + mm_height.toFixed(2) ; text_result.value = result_size; text_result.onclick = function() { //テキストを選択状態にする text_result.select(); //選択範囲をクリップボードにコピー document.execCommand("copy"); text_info.innerHTML = "結果をクリップボードにコピーしました"; }; } </script></div></section><section id="pages-3" class="widget widget_pages"><h2 class="widget-title">オリジナル検定</h2> <ul> <li class="page_item page-item-18"><a href="https://reject.tokyo/ios%e7%94%b3%e8%ab%8b-%e8%a9%a6%e9%a8%93/">iOS開発者オリジナル検定 2018年11月版</a></li> </ul> </section><section id="text-3" class="widget widget_text"><h2 class="widget-title">プロフィール</h2> <div class="textwidget"><p>ささのまさき (1974-)</p> <p>なぞなぞ作家。仕事の傍ら趣味のプログラミングを行っています。なるべくわかりやすくカジュアルな文章を心がけています。</p> </div> </section><section 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