JS常用工具类 | 码路漫漫任重道远

date类

JS常用工具类-LMLPHP

var date = new Date();//当前日期

var year = date.getFullYear();//年份

var month = date.getMonth()+1;//月份（从0开始的所以加1）

var day = date.getDate();//哪一天  （1-31）

var house = date.getHours();//时 24小时制

var min = date.getMinutes();//分

var sec = date.getSeconds();//秒

var d = year+"-"+month+"-"+day+" "+house+":"+min+":"+sec;//组合时间

console.log(d);

定时器

<html>
    <head>
        <script>
            var time;
            (function setSpan(){
                console.log(222);
                time = setInterval(getDate,1000);
            })();

            function getDate(){
                var s = document.getElementById("s");
                var date = new Date();
                var year = date.getFullYear();
                var month = date.getMonth()+1;
                var day = date.getDate();
                var house = date.getHours();
                var min = date.getMinutes();
                var sec = date.getSeconds();
                month = month<10?"0"+month:month;
                day = day<10?"0"+day:day;
                house = house<10?"0"+house:house;
                min = min<10?"0"+min:min;
                sec = sec<10?"0"+sec:sec;
                var d = year+"-"+month+"-"+day+" "+house+":"+min+":"+sec;
                s.innerHTML = d;
            }

            //清空定时器
            function clears(){
                clearTimeout(time);
            }
        </script>
    </head>
    <body>
        <span id="s"></span>
        <button onclick="clears()">清除定时器</button>
    </body>
</html>

常用对象String

JS常用工具类-LMLPHP

案例

JS常用工具类-LMLPHP

Array对象

JS常用工具类-LMLPHP

案例

JS常用工具类-LMLPHP

Math对象

JS常用工具类-LMLPHP

Number对象

JS常用工具类-LMLPHP