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<html lang="ja"> <meta charset="utf-8"> <pre style="display:none;"> JavaScript の reserved words (予約語) abstract / arguments / await / boolean / break / byte / case / catch / char / class / continue / debugger / default / delete / do / double / else / enum / eval / export / extends / false / final / finally / float / for / function / goto / if / implements / import / in / instanceof / int / interface / let / long / native / new / null / package / private / protected / public / return / short / static / super / switch / synchronized / this / throw / throws / transient / true / try / typeof / undefined / var / void / volatile / while / with / yield </pre> <button onclick="ぼたん()">ボタン</button> <button onclick="りろーど()">リロード</button> <p id="もじ">文字</p> <script> function ぼたん() {let 赤文字=document.getElementById("もじ"); 赤文字.style.fontSize="40px"; 赤文字.style.color="red";} function りろーど() {document.location.reload();} </script> </html>
