出于維護目的，我只是想使用 ID 而不是索引來更改按鈕的背景顏色。有什么建議如何做到這一點嗎？從 jsfiddle 運行代碼：https ://jsfiddle.net/p6kuf0zv/4/或者查看代碼片段中的代碼：// On click on a button, a popover menu will show up $("[data-toggle=popover]").popover({ html: true, sanitize: false, trigger: 'focus', content: function() { return $('#popover-content').html(); } }); // Creates data items inside local storage with keyName and keyValue var saveColorPref = (keyName, keyValue) => { localStorage.setItem(keyName, keyValue); return keyValue; } // Retrieves data items from local storage var getColorPref = (keyName) => { return localStorage.getItem(keyName); } // How can the code bellow be changed to make use of ID instead of index? var targetBtn; function setColor(keyValue) { var keyName = $(targetBtn).index(); console.log(keyName, keyValue); $(targetBtn).css("background", saveColorPref(keyName, keyValue)); } $('.myBtn').each((keyName, item) => { $(item).click((e) => { targetBtn = e.target; }); });.demo1{ background-color: red; } .demo2{ background-color: green; } .demo3{ background-color: blue; }<head> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script></head>
如何使用 id 而不是索引來定位按鈕？
慕桂英3389331
2023-10-30 21:12:43
