js

鼠标按下开始画线,鼠标移动根据鼠标的轨迹去画,鼠标抬起停止画线 效果图 和上面效果相同,只是轨迹线换成了直线(鼠标移动始终显示两点直线,只能绘制有一条线) 效果图 效果图和上面相同(可以画多条直线,点

js实现分片上传```````````````````````````````````````````````

原始数组 希望转化后的数据 转化的方法 使用`````````````````````````````````````````

表格内容(本博客演示的表格,这里其实可以更换任意表格,动态展示的) 安装插件xlsx 组件的所有代码(附解释) 效果图 上传表格后的效果图 更换下表格再展示 js上传表格(所有代码,不附讲解) js表

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效果图 完整代码````````````````````````````````````````````````

概述 <video>元素用来加载视频，是HTMLVideoElement对象的实例。<audio>元素用来加载音频，是HTMLAudioElement对象的实例。而HTMLVideoElement和H

鼠标事件 contextmenu 在用户点击鼠标右键打开上下文菜单时触发 dblclick 当用户双击某个对象时调用的事件句柄。 mousedown 鼠标按钮被按下。 mouseenter 当鼠标指针

html代码 js代码````````````````````````````````````````

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```html 删除本地存储的数据 localStorage sesstionstorageI ```

下面这个是带进度条的音视频(本人仅是为了参考进度条制作,怕以后忘了)`````````````````

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共四个页面,有详细说明 页面一 页面二 页面三(自定义校验) 参数信息```````````````

使用方法``````````````````````````````````````````````

拖放事件 被拖动元素的相关事件如下所示： 事件 描述 dragstart 用户开始拖动元素时触发 drag 元素正在拖动时触发 dragend 用户完成元素拖动后触发 容器相关事件如下所示： 事件 描

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IIFE介绍 IIFE写法 1.！ 2.+ 3.- 4.- 5.void 6.前导分号；``````

完整代码 存储方式的完整代码 cookie介绍 cookie增删改查 会话cookie(seccion cookie)，不设置数据的过期时间，默认cookie在浏览器关闭时删除， 格式 “key=va