1、判断数组中是否包含指定元素
[arr].contains([i])
Array.prototype.contains = function (obj) {
var i = this.length;
while (i--) {
if (this[i] == obj) {
return true;
}
}
return false;
}
2、蒙版
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>蒙板</title>
<style>
.container {
900px;
margin: 50px auto;
text-align: center;
}
#myModel {
position: absolute;
top: 0;
left: 0;
display: none;
background-color: rgba(9, 9, 9, 0.63);
100%;
height: 100%;
z-index: 1000;
}
.model-content {
50%;
text-align: center;
background: #ffffff;
border-radius: 6px;
margin: 100px auto;
line-height: 30px;
z-index: 10001;
}
</style>
</head>
<body>
<div class="container">
<button onclick="showModel()">弹出蒙板</button>
<div id="myModel" onclick="closeModel()">
<div class="model-content">
<p>你好啊,我是内容~~</p>
<p>
<button id="closeModel" onclick="closeModel()">关闭</button>
</p>
</div>
</div>
</div>
<script>
function showModel() {
document.getElementById('myModel').style.display = 'block';
}
function closeModel() {
document.getElementById('myModel').style.display = 'none';
}
</script>
</body>
</html>
3、子页面关闭后自动刷新父页面
opener.location.reload()
4、获取所有选中的CheckBox的Name值
$('input:checkbox[name=check_content]:checked')
5、AngularJS 获取Scope
var scope = $('div[ng-controller="precision-controller"]').scope();
6、获取Url中Request参数
$.getUrlParam = function (name) {
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
var r = window.location.search.substr(1).match(reg);
if (r != null) {
return unescape(r[2]);
}
return null;
}
$.getUrlParam(name)
7、时间字符转换函数
Date.prototype.format = function (format) {
var o = {
"M+": this.getMonth() + 1, //month
"d+": this.getDate(), //day
"h+": this.getHours(), //hour
"m+": this.getMinutes(), //minute
"s+": this.getSeconds(), //second
"q+": Math.floor((this.getMonth() + 3) / 3), //quarter
"S": this.getMilliseconds() //millisecond
}
if (/(y+)/.test(format)) {
format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
}
for (var k in o) {
if (new RegExp("(" + k + ")").test(format)) {
format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
}
}
return format;
}
[date].format("yyyy-MM-dd hh:mm:ss")
8、跟随滚动条固定顶部导航
//header 为导航上部元素
//nav 为导航元素
//main 为下部主体内容元素
<script type="text/javascript">
var i = 0;
$(window).scroll(function () {
var s = $(window).scrollTop();
var headerHeight = $("#header").height();
var indexHeight = $(".nav").height();
if (s > headerHeight) {
$(".nav").css({ "position": "absolute", "top": s, "width": "100%", "z-index": 999 });
if (i == 0) {
$("#main").css({ "position": "relative", "top": indexHeight, "width": "100%" });
i = 1;
}
}
else {
$(".nav").css({ "position": "relative", "top": "0px" });
$("#main").css({ "position": "relative", "top": "0px" });
i = 0;
}
});
</script>