获取当前websocket的连接状态

JavaScript

这是非常简单的：readyStatewebsocket 的属性总是包含websocket的连接，正如WebSocket API 它将是以下值之一：CONNECTING OPEN CLOSING或CLOSED if(yourWsObject.readyState === yourWsObject.CLOSED){ // Do your s..

2019-12-31

判断对象是否为空对象的几种方法

JavaScript

1.将 json对象转化为 json 字符串，再判断该字符串是否为 "{}" var data = {}; var b = (JSON.stringify(data) == "{}"); alert(b);//true 2.for in 循环判断 var obj = {}; var b = function()..

2019-12-23

获取当天的时间戳

JavaScript

var start = new Date( new Date(new Date().toLocaleDateString()).getTime() ); // 当天0点 var end = new Date( // 当天23:59 new Date(new Date().toLocaleDateString()).getTime() ..

2019-12-23

window.open

JavaScript

Javascript window.open使用POST传递值function openWindowWithPost(url, data) { var form = document.createElement("form"); form.target = "_blank"; form.me..

2019-12-19

封装cookie方法

JavaScript cookie

function setCookie(cname,cvalue,exdays){ var d = new Date(); d.setTime(d.getTime()+(exdays*24*60*60*1000)); var expires = "expires="+d.toGMTString(); ..

2019-12-18

添加书签至浏览器

JavaScript

// 添加书签至浏览器 function addfavorite() { var ctrl = (navigator.userAgent.toLowerCase()).indexOf('mac') != -1 ? 'Command/Cmd': 'CTRL'; try{ ..

2019-12-14

百度地图渲染路线

map

通过经纬度渲染路线var points = [ {"lng": 120.28429, "lat":31.52853, "title":"无锡市"}, {"lng": 119.59794, "lat":31.72322..

2019-12-14

百度地图搜索并上传位置

map

var start_point = {lng: 116.404,lat: 39.915} var map = new BMap.Map("container"); map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放 // 根据经纬度自适应zoom和中点 map.centerAndZoo..

2019-12-14