Posted in Javascript onDecember 04, 2020
js代码：
window.alert = function(msg, callback) {
var div = document.createElement("div");
div.innerHTML = "<style type=\"text/css\">"
+ ".nbaMask { position: fixed; z-index: 1000; top: 0; right: 0; left: 0; bottom: 0; background: rgba(0, 0, 0, 0.5); } "
+ ".nbaMaskTransparent { position: fixed; z-index: 1000; top: 0; right: 0; left: 0; bottom: 0; } "
+ ".nbaDialog { position: fixed; z-index: 5000; width: 80%; max-width: 300px; top: 50%; left: 50%; -webkit-transform: translate(-50%, -50%); transform: translate(-50%, -50%); background-color: #fff; text-align: center; border-radius: 8px; overflow: hidden; opacity: 1; color: white; }"
+ ".nbaDialog .nbaDialogHd { padding: .2rem .27rem .08rem .27rem; } "
+ ".nbaDialog .nbaDialogHd .nbaDialogTitle { font-size: 17px; font-weight: 400; } "
+ ".nbaDialog .nbaDialogBd { padding: 0 .27rem; font-size: 15px; line-height: 1.3; word-wrap: break-word; word-break: break-all; color: #000000; } "
+ ".nbaDialog .nbaDialogFt { position: relative; line-height: 48px; font-size: 17px; display: -webkit-box; display: -webkit-flex; display: flex; } "
+ ".nbaDialog .nbaDialogFt:after { content: \" \"; position: absolute; left: 0; top: 0; right: 0; height: 1px; border-top: 1px solid #e6e6e6; color: #e6e6e6; -webkit-transform-origin: 0 0; transform-origin: 0 0; -webkit-transform: scaleY(0.5); transform: scaleY(0.5); } "
+ ".nbaDialog .nbaDialogBtn { display: block; -webkit-box-flex: 1; -webkit-flex: 1; flex: 1; color: #09BB07; text-decoration: none; -webkit-tap-highlight-color: transparent; position: relative; margin-bottom: 0; } "
+ ".nbaDialog .nbaDialogBtn:after { content: \" \"; position: absolute; left: 0; top: 0; width: 1px; bottom: 0; border-left: 1px solid #e6e6e6; color: #e6e6e6; -webkit-transform-origin: 0 0; transform-origin: 0 0; -webkit-transform: scaleX(0.5); transform: scaleX(0.5); } "
+ ".nbaDialog a { text-decoration: none; -webkit-tap-highlight-color: transparent; }"
+ "</style>"
+ "<div id=\"dialogs2\" style=\"display: none\">"
+ "<div class=\"nbaMask\"></div>"
+ "<div class=\"nbaDialog\">"
+ " <div class=\"nbaDialogHd\">"
+ " <strong class=\"nbaDialogTitle\"></strong>"
+ " </div>"
+ " <div class=\"nbaDialogBd\" id=\"dialog_msg2\">弹窗内容，告知当前状态、信息和解决方法，描述文字尽量控制在三行内</div>"
+ " <div class=\"nbaDialogHd\">"
+ " <strong class=\"nbaDialogTitle\"></strong>"
+ " </div>"
+ " <div class=\"nbaDialogFt\">"
+ " <a href=\"javascript:;\" class=\"nbaDialogBtn nbaDialogBtnPrimary\" id=\"dialog_ok2\">确定</a>"
+ " </div></div></div>";
document.body.appendChild(div);
var dialogs2 = document.getElementById("dialogs2");
dialogs2.style.display = 'block';
var dialog_msg2 = document.getElementById("dialog_msg2");
dialog_msg2.innerHTML = msg;
// var dialog_cancel = document.getElementById("dialog_cancel");
// dialog_cancel.onclick = function() {
// dialogs2.style.display = 'none';
// };
var dialog_ok2 = document.getElementById("dialog_ok2");
dialog_ok2.onclick = function() {
dialogs2.style.display = 'none';
callback();
};
};
html引用：
<!DOCTYPE html>
<html>
<head>
<title>alert.html</title>
<meta charset="UTF-8">
<meta name="keywords" content="keyword1,keyword2,keyword3">
<meta name="description" content="this is my page">
<meta name="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css" rel="external nofollow" >-->
</head>
<body>
This is my HTML page.
<br>
<script type="text/javascript" src="alert.js"></script>
<script type="text/javascript">
alert("哈哈哈！！！看，没有标题~_~");
</script>
</body>
</html>
总结
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js重写alert事件（避免alert弹框标题出现网址）
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