JS基础操作

//删除一字符串中指定的字符
var str="www.baidu.com/?page";
str=str.replace(/?page/,"");
alert(str);// 计算系统当前是星期几
var a = new Array("日", "一", "二", "三", "四", "五", "六");
var week = new Date().getDay();
var str = "今天是星期"+ a[week];
alert(str);
// 计算系统当前是星期几
var str = "今天是星期" + "日一二三四五六".charAt(new Date().getDay());