<script> var min=Math.min(5,-4,0,9,108,-55); console.log(min);//-55 var min1=Math.min(5,-4,0,9,108,-55,"abc"); console.log(min1);//NaN var max=Math.max(88,0,6,85,199); console.log(ma);//199</script>
var random=Math.random();console.log(random);//每一次刷新都不一样,小于1的随机数:0.458541256325412//生成x~x之间的随机整数function getRandom(n,m){ var choise=m-n+1;//随机整数的个数 return Math.floor(Math.random()*choise+n);}var random1=getRandom(2,6);console.log(random1);//5 3 2...二、date对象
<script> var today=new Date(); //第一种做法 //today.setDate(today.getDate()+50); //console.log(today.getDay()); //5 //第二种做法 var weeks=["日","一","二","三","四","五","六"]; var year=today.getFullYear(); var month=today.getMonth(); var day=today.getDate(); //创建一个目标日期对象 var temp = new Date(year,month,day+50); console.log("50天后的今天是:"+temp.getFullYear()+'-'+(temp.getMonth()+1)+'-'+temp.getDate() +'-'+'星期'+weeks[temp.getDay()]); //50天后的今天是:2018-2-23-星期五</script>