javascript复习3：Date && Array

来源：互联网发布：淘宝返现客服回复技巧编辑：程序博客网时间：2024/05/20 20:22

<input type="button" onclick="startTime()" value="计时" /><br /><div id="txt"></div><br />

var d=new Date()var weekday=new Array(7)weekday[0]="星期日"weekday[1]="星期一"weekday[2]="星期二"weekday[3]="星期三"weekday[4]="星期四"weekday[5]="星期五"weekday[6]="星期六"document.write(d.getFullYear())document.write("今天是" + weekday[d.getDay()])

function startTime(){var today=new Date()var h=today.getHours()var m=today.getMinutes()var s=today.getSeconds()// add a zero in front of numbers<10m=checkTime(m)s=checkTime(s)document.getElementById('txt').innerHTML='<div>'+h+":"+m+":"+s+"</div>"t=setTimeout('startTime()',500)}function checkTime(i){if (i<10)   {i="0" + i}  return i}

var arr = new Array(3)arr[0] = "George"arr[1] = "John"arr[2] = "Thomas"var arr2 = new Array(3)arr2[0] = "James"arr2[1] = "Adrew"arr2[2] = "Martin"document.write(arr.concat(arr2))

var arr = new Array(3);arr[0] = "George"arr[1] = "John"arr[2] = "Thomas"document.write(arr.join());document.write("<br />");document.write(arr.join("."));

var arr = new Array(6)arr[0] = "George"arr[1] = "John"arr[2] = "Thomas"arr[3] = "James"arr[4] = "Adrew"arr[5] = "Martin"document.write(arr + "<br />")document.write(arr.sort())

function sortNumber(a, b){return a - b}var arr = new Array(6)arr[0] = "10"arr[1] = "5"arr[2] = "40"arr[3] = "25"arr[4] = "1000"arr[5] = "1"document.write(arr + "<br />")document.write(arr.sort(sortNumber))