【JS 常用操作】

正则表达式

    <script>
        var str = "（08:30-10:00）";
        var patt = /^[（][0-9]{2}:[0-9]{2}-[0-9]{2}:[0-9]{2}[）]$/;
        var res = patt.test(str);
        document.write("<br/><br/>" + res);
    </script>

 动态获取验证码

onclick="this.src='/Login/GetVerifyCodeImage/' + (new Date()).valueOf()"

js数值转换

ys1.push(parseFloat(obj.result[item]).toFixed(1));

获取可见屏幕的宽度

var windowWidth = document.body.clientWidth;    //获取可见屏幕的宽度
var windowHeight = document.body.clientHeight;    //获取可见屏幕的高度

是否是PC、获取url参数、更新url

function IsPC() {
    var userAgentInfo = navigator.userAgent;
    var Agents = ["Android", "iPhone",
        "SymbianOS", "Windows Phone",
        "iPad", "iPod"
    ];
    var flag = true;
    for (var v = 0; v < Agents.length; v++) {
        if (userAgentInfo.indexOf(Agents[v]) > 0) {
            flag = false;
            break;
        }
    }
    return flag;
}
function getQueryString(name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
    var r = window.location.search.substr(1).match(reg);
    if (r != null) return decodeURIComponent(r[2]); return '';
}
function updateURL() {
    if(location.href.indexOf('?')!=-1){
        window.location.href = window.location.href+'&t='+new Date().getTime();
    }else{
        window.location.href = window.location.href+'?t='+new Date().getTime();
    }
}