事件冒泡
function prevent() {
window.event? window.event.cancelBubble = true : e.stopPropagation();
}
table 点击切换
<!-- 没有css 懒... -->
<!-- HTML -->
<ul class="sideslip-head">
<li class="active"><span>1111</span></li>
<li><span>22222</span></li>
<li><span>33333</span></li>
</ul>
<div class="sideslip-box">
<ul class="sideslip-titles">
<li>11111</li>
</ul>
<ul class="sideslip-titles">
<li>222222</li>
</ul>
<ul class="sideslip-titles">
<li>33333</li>
</ul>
</div>
/* JQ */
$(".sideslip-head>li").click(function(){
$(this).addClass("active").siblings().removeClass("active");
$(".sideslip-titles").eq($(this).index()).css("display","block").siblings().css("display","none")
})
导航 滚动到指定位置后 悬浮
/*
没有css
没有html
懒...
*/
/* JQ */
$(window).scroll(function(){
var bignav = $(".导航名字");
if( $(this).scrollTop() >195){
bignav.addClass('导航置顶后的改变样式 的名字'); // 导航css不改变 能够删掉该行
bignav.css({
width:"100%",
position:"fixed",
top:50,
zIndex:10
});
}
else{
bignav.removeClass('导航置顶后的改变样式 的名字'); // 导航css不改变 能够删掉该行
bignav.css("position","static");
}
});
点击按钮显示/ 隐藏 点击别处隐藏 点击浮层不动
/* css */
.wrapper{
position:relative;
display:inline-block;
}
.popover{
display: none;
border:1px solid red;
position:absolute;
left:50px;
top:0;
white-space:nowrap;
padding:10px;
margin-left:10px;
background: white;
}
.popover::before{
position:absolute;
right:100%;
top:0;
border: 10px solid transparent;
border-right-color:red;
content:'';
}
.popover::after{
position: absolute;
right:100%;
top:0;
border:10px solid transparent;
border-right-color: white;
}
<!-- html -->
<div id="wrapper" class="wrapper">
<button id="clickMe">点我</button>
<div id="popover" class="popover"><input type="checkbox">浮层</div>
</div>
//jq 方法1:点击自身能隐藏 其他功能 和方法2 同样
$(clickMe).on('click',function (ev) {
ev.stopPropagation();
$(popover).slideToggle(); //slideToggle 这个可换
var flag = true;
$(document).bind("click",function(e){
var target = $(e.target);
if(target.closest($(clickMe)).length == 0 && flag == true){
$(popover).slideUp();
flag = false;
}
});
});
//jq 方法2:点击自身不不不不不不不能隐藏 其他功能 和方法1 同样
$(clickMe).on('click',function () {
$(popover).show()
$(document).one('click',function(){
console.log('document')
$(popover).hide()
})
})
$(wrapper).on('click',function(e){
e.stopPropagation()
})
图片上传
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
body {background: #edf0f2;}
img {width: 100%;display: block;border: none;vertical-align: bottom;border: none;}
input[type="button"] {-webkit-appearance: none;}
.productDrawingBox {background-color: #fcfcfc;color: #333333;font-size: 16px;padding-left: 11px;border-bottom: solid 1px #e5e5e5;}
.productDescription {height: 44px;line-height: 44px;}
.productImg {height: 96px;overflow: hidden;}
.imgBiMG{width: 78px;height: 81px;float: left;display: block;}
.uploadDIv {width: 78px;height: 81px;background-color: #edf0f2;font-size: 28px;color: #bfbfbf;text-align: center;line-height: 81px;float: left;position: relative;}
.uploadDIv input {width: 78px;height: 78px;opacity: 0;position: absolute;right: 0px;top: 0px;z-index: 4;padding: 0;}
</style>
</head>
<body>
<div class="productDrawingBox">
<div class="productDescription">上传图片</div>
<div class="productImg">
<div id="uploadBox"></div>
<div class="uploadDIv">
<span>+</span><input type="file" name="file" multiple id="inputs" accept="image/*" class='fileTest' multiple="multiple" />
</div>
</div>
</div>
</div>
</body>
<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
<script type="text/javascript">
$(function() {
var img = []; //建立一个空对象用来保存传入的图片
var AllowImgFileSize = '101376'; //1兆
$("#inputs").change(function() {
var fil = this.files;
for(var i = 0; i < fil.length; i++) {
var curr = $('#inputs')[i].files[0].size;
if(curr > AllowImgFileSize * 101376) { //当图片大于1兆提示
layer.msg("图片文件大小超过限制 请上传小于99M的文件");
} else {
reads(fil[i]);
img.push($('#inputs')[i].files[0]); //将传入的图片push到空对象中
}
}
if(img.length >= 6) { //判断图片的数量,数量不能超过3张
$('.uploadDIv').hide();
} else {
$('.uploadDIv').show();
}
console.log(img);
});
function reads(fil) {
var reader = new FileReader();
reader.readAsDataURL(fil);
reader.onload = function() {
document.getElementById("uploadBox").innerHTML += "<div class='divImg' id='uploadImg'><img src='" + reader.result + "' class='imgBiMG'></div>";
}
}
})
</script>
</html>
input 点击鼠标自动后移
<!-- HTML -->
<div class="position-find" >
<form action=""name=card>
<input maxlength="1" name="t1" type="text">
<input maxlength="1" name="t2" type="text">
<input maxlength="1" name="t3" type="text">
<i>-</i>
<input maxlength="1" name="t4" type="text">
<input maxlength="1" name="t5" type="text">
<input maxlength="1" name="t6" type="text">
<input maxlength="1" name="t7" type="text">
<i>-</i>
<input maxlength="1" name="t8" type="text">
<input maxlength="1" name="t9" type="text">
<input maxlength="1" name="t10" type="text">
<input maxlength="1" name="t11" type="text">
</form>
</div>
/* JS */
$('.position-find input').bind('keyup',function(){
if ($(this).attr('name') == 't11')
$("input[type='tel']").focus()
$(this).nextAll('input').first().focus();
})
字符串截取并添加和替换颜色
/* JS */
$('须要替换的').each(function(){
var str = $(this).text();
var h3Html = str.substring(0, 3)+"<span class='须要添加的颜色'>"+str.substring(3, 7)+"</span>"+str.substring(7, 11);
$(this).html(h3Html);
})