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  • js日期格式化

    js日期格式化

    每次遇到日期格式化都要去网上搜一次,这次认真做次笔记。

    <html>
    <head>
    	<script>
    	 function test(){
    	    //Js获取当前日期时间及其它操作
    		var myDate = new Date();
    		console.log("年月日S:" + myDate.toLocaleDateString());
    		console.log("时分秒:" + myDate.toLocaleTimeString());
    		console.log("当前年份:" + myDate.getFullYear());
    		console.log("当前月份:" + myDate.getMonth());
    		console.log("当前日期:" + myDate.getDate());
    		console.log("当前星期:" + myDate.getDay());
    		console.log("当前时间为:" + myDate.pattern("yyyy-MM-dd HH:mm:ss"));
    		console.log("小时字符串:" + myDate.pattern("yyyy-MM-dd HH:mm:ss").substring(11,13));
    		console.log("分钟字符串:" + myDate.pattern("yyyy-MM-dd HH:mm:ss").substring(14,16));
    		console.log("秒字符串:" + myDate.pattern("yyyy-MM-dd HH:mm:ss").substring(17,19));
    	 }
    //日期格式化函数	 
    Date.prototype.pattern=function(fmt) {           
    var o = {           
    "M+" : this.getMonth()+1, //月份           
    "d+" : this.getDate(), //日           
    "h+" : this.getHours()%12 == 0 ? 12 : this.getHours()%12, //小时           
    "H+" : this.getHours(), //小时           
    "m+" : this.getMinutes(), //分           
    "s+" : this.getSeconds(), //秒           
    "q+" : Math.floor((this.getMonth()+3)/3), //季度           
    "S" : this.getMilliseconds() //毫秒           
    };           
    var week = {           
    "0" : "/u65e5",           
    "1" : "/u4e00",           
    "2" : "/u4e8c",           
    "3" : "/u4e09",           
    "4" : "/u56db",           
    "5" : "/u4e94",           
    "6" : "/u516d"          
    };           
    if(/(y+)/.test(fmt)){           
        fmt=fmt.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length));           
    }           
    if(/(E+)/.test(fmt)){           
        fmt=fmt.replace(RegExp.$1, ((RegExp.$1.length>1) ? (RegExp.$1.length>2 ? "/u661f/u671f" : "/u5468") : "")+week[this.getDay()+""]);           
    }           
    for(var k in o){           
        if(new RegExp("("+ k +")").test(fmt)){           
            fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));           
        }           
    }           
    return fmt;           
    } 
    	</script>
    </head>
    	<body>
    		<button onclick = "test();">
    		click here
    		</button>
    	</body>
    </html>
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  • 原文地址:https://www.cnblogs.com/xieshuang/p/5366987.html
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