js计算系统当前日期是星期几的方法

本文实例为大家分享了4种js计算系统当前日期是星期几的方法,供大家参考,具体内容如下

方法一:

// 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());

方法二:

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);

方法三:

var str = "今天是星期";

var week = new date().getday();

switch (week) {

case 0 :

str1 += "日";

break;

case 1 :

str1 += "一";

break;

case 2 :

str1 += "二";

break;

case 3 :

str1 += "三";

break;

case 4 :

str1 += "四";

break;

case 5 :

str1 += "五";

break;

case 6 :

str1 += "六";

break;

}

alert(str);

方法四:

var str = "";

var week = new date().getday();

if (week == 0) {

str = "今天是星期日";

} else if (week == 1) {

str = "今天是星期一";

} else if (week == 2) {

str = "今天是星期二";

} else if (week == 3) {

str = "今天是星期三";

} else if (week == 4) {

str = "今天是星期四";

} else if (week == 5) {

str = "今天是星期五";

} else if (week == 6) {

str = "今天是星期六";

}

alert(str);

以上是 js计算系统当前日期是星期几的方法 的全部内容, 来源链接: utcz.com/z/342821.html

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