本文整理匯總了javascript常見的各類操作，包括字符串、時間、表單、正則驗證等等。有著極高的參考價值。分享給大家供大家參考之用。具體方法如下：
/***** BasePage.js 公共的腳本文件部分方法需引用jquery庫*****/ //#region 日期操作//字符串轉化為時間。 function stringtoTime(date1) { var dt = new Date(Date.parse(date1.replace(/-/g, "/"))); return dt;} // 使用var date1 = "2013-06-08 15:23:31"或"2013/6/8 9:9:00"格式;//-------------------------------------------------------------// 日期格式化Date.prototype.format = function (format) { var o = { "M+": this.getMonth() + 1, //month "d+": this.getDate(), //day "h+": this.getHours(), //hour "m+": this.getMinutes(), //minute "s+": this.getSeconds(), //second "q+": Math.floor((this.getMonth() + 3) / 3), //quarter "S": this.getMilliseconds() //millisecond } if (/(y+)/.test(format)) { format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length)); } for (var k in o) { if (new RegExp("(" + k + ")").test(format)) { format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length)); } } return format;} ////使用方法//alert(newdate.format("yyyy-MM-dd"));//alert(newdate.format("MM/dd/yyyy"));//var nowStr = now.format("yyyy-MM-dd hh:mm:ss"); Math.round(Math.random() * 10000)////使用方法2: //var testDate = new Date();//var testStr = testDate.format("yyyy年MM月dd日hh小時mm分ss秒");////示例： //alert(testDate.format("yyyy年MM月dd日"));//-------------------------------------------------------------//設置週期內的日期(數組)function SetFlag(start, end) { var cdate = Array(); cdate = start.split("-"); var cd = cdate[1] + "/" + cdate[2] + "/" + cdate[0]; var dayNum = DateDiff(end, start); for (var i = 0; i <= dayNum; i++) { flag.push(AddDays(cd, i)); }} //end fun //日期加上天數後的新日期.function AddDays(date, days) { var nd = new Date(date); nd = nd.valueOf(); nd = nd + days * 24 * 60 * 60 * 1000; nd = new Date(nd); //alert(nd.getFullYear() + "年" + (nd.getMonth() + 1) + "月" + nd.getDate() + "日"); var y = nd.getFullYear(); var m = nd.getMonth() + 1; var d = nd.getDate(); if (m <= 9) m = "0" + m; if (d <= 9) d = "0" + d; var cdate = y + "-" + m + "-" + d; return cdate;}//兩個日期的差值(d1 - d2).function DateDiff(d1, d2) { var day = 24 * 60 * 60 * 1000; try { var dateArr = d1.split("-"); var checkDate = new Date(); checkDate.setFullYear(dateArr[0], dateArr[1] - 1, dateArr[2]); var checkTime = checkDate.getTime(); var dateArr2 = d2.split("-"); var checkDate2 = new Date(); checkDate2.setFullYear(dateArr2[0], dateArr2[1] - 1, dateArr2[2]); var checkTime2 = checkDate2.getTime(); var cha = (checkTime - checkTime2) / day; return cha; } catch (e) { return false; }} //end fun //#endregion //#region URL操作/** 根據QueryString參數名稱獲取值*/function getQueryStringByName(name) { var result = location.search.match(new RegExp("[/?/&]" + name + "=([^/&]+)", "i")); if (result == null || result.length < 1) return ""; return result[1];} function GetQueryString(name) { // 如果鏈接沒有參數，或者鏈接中不存在我們要獲取的參數，直接返回空if (location.href.indexOf("?") == -1 || location.href.indexOf(name + '=') == -1) { return ''; } // 獲取鏈接中參數部分var queryString = location.href.substring(location.href.indexOf("?") + 1); // 分離參數對?key=value&key2=value2 var parameters = queryString.split("&"); var pos, paraName, paraValue; for (var i = 0; i < parameters.length; i++) { // 獲取等號位置pos = parameters[i].indexOf('='); if (pos == -1) { continue; } // 獲取name 和value paraName = parameters[i].substring(0, pos); paraValue = parameters[i].substring(pos + 1); // 如果查詢的name等於當前name，就返回當前值，同時，將鏈接中的+號還原成空格if (paraName == name) { return unescape(paraValue.replace(//+/g, " ")); } } return '';} /** 獲取當前地址的小寫文件名*/function getCurrentUrlName() { var url = window.location.href; url = url.toLocaleLowerCase(); if (url == undefined || url == "") return ""; var item = url.toString().split("/"); var name = item[item.length - 1]; name = name.toString().split("."); if (name.length == 2) return name[0].toString(); else return "";} //#endregion //#region 字符串操作/** 截取指定長度字符串* 參數：* strString: 需要截取的字符串* strStart: 開始的索引* intLen: 截取的長度*/function getCustomLengtStr(strString, strStart, intLen) { if (strString != undefined && strString != "" && strString != null) { var CLen = strString.toString().length; if ((strStart + intLen) <= CLen - 1) { if (strStart < 0) strStart = 0; return strString.toString().substr(strStart, Number(intLen)); } else { //長度越界,返回原始數據return strString; } } else return "";} /** 截取指定指定區間的字符串* 參數：* strString: 需要截取的字符串* intStart: 開始的索引* intEnd: 結束的索引*/function getCustomLengtStr(strString, intStart, intEnd) { if (strString != undefined && strString != "" && strString != null) { var Clen = strString.toString().length - 1; if (Number(intEnd) <= Clen) { if (intStart < 0) intStart = 0; else if (intStart > Clen) intStart = Clen; return strString.toString().substring(intStart, intEnd); } else { //長度越界,返回原始數據return strString; } } else return "";} //#endregion //#region 設為首頁,添加收藏//設為首頁function SetHome() { if (document.all) { document.body.style.behavior = "url(#default#homepage)"; var url = window.location.href; document.body.setHomePage(url); } else { alert("設為首頁失敗，請手動設置！ "); }} //添加到收藏function AddCollect() { var url = window.location.href; try { window.external.addFavorite(url, "美源金業"); } catch (e) { try { window.sidebar.addPanel("美源金業", url, ""); } catch (e) { alert("加入收藏失敗，請使用Ctrl+D進行添加"); } }} //#endregion //#region 全選/全不選//CheckSelectAll(true); function CheckSelectAll(check) { $("input[type='checkbox']").attr("checked", check)} //#endregion //#region 驗證碼倒計時//CountDown("#btnGetCode",60); function CountDown(item, times) {//要操作的元素,時間(s) var timer = setInterval(function () { var btnValidate = $(item); if (times > 0) { btnValidate.attr("disabled", "false").css("opacity", "0.5").val("重新獲取(" + times + ")"); times--; } else { btnValidate.removeAttr("disabled").css("opacity", "1").val("獲取驗證碼"); clearInterval(timer); } }, 1000);} //#endregion //#region 清除文本框默認值//ClearEmpty("#txtName"); function ClearEmpty(obj) {//要操作的元素$(obj).focus(function () { if ($(this).val() == this.defaultValue) { $(this).val(""); } }).blur(function () { if ($(this).val() == "") { $(this).val(this.defaultValue); } });} //#endregion //#region 刷新頁面function Refresh() { window.parent.location.reload();} //#endregion //#region 表單驗證//#region 檢查是否為中文// var item = checkChinese("中文"); function checkChinese(obj) { var reg = /[^/u4e00-/u9fa5]/; return !reg.test(obj);} //#endregion //#region 檢查是否為數字// var item = checkNum("123"); function checkNum(obj) { var reg = /^/d+$/; return reg.test(obj);} //#endregion //#region 檢查是否為字母// var item = checkLetter("abc"); function checkLetter(obj) { var reg = /^[a-zA-Z]+$/; return reg.test(obj);} //#endregion //#region 檢查是否為字母或數字// var item = checkLetterNum("abc123"); function checkLetterNum(obj) { var reg = /^[a-zA-Z0-9]+$/; return reg.test(obj);} //#endregion //#region 檢查是否為字母或中文// var item = checkLetterNum("abc123"); function checkLetterChina(obj) { var reg = /^[A-Za-z/u4E00-/u9FA5]+$/; return reg.test(obj);} //#endregion //#region 檢查是否為字母或中文或數字// var item = checkLetterNum("abc123"); function checkLetterChinaNum(obj) { var reg = /^[a-zA-Z0-9/u4E00-/u9FA5]+$/; return reg.test(obj);} //#endregion //#region 檢查手機號碼格式// var item = checkMobile("13888888888") function checkMobile(obj) { var reg = /^[1][3458][0-9]{9}$/; return reg.test(obj);} //#endregion //#region 檢查郵箱格式// var item = checkEmail("[email protected]") function checkEmail(obj) { var reg = /^([a-zA-Z0-9_/./-])+/@(([a-zA-Z0-9/-])+/.)+([a-zA-Z0-9]{2,4})+$/; return reg.test(obj);} //#endregion //#region 檢查身份證格式// var item = checkIDCard("555555555555555555") function checkIDCard(obj) { var reg = /(^/d{15}$)|(^/d{18}$)|(^/d{17}(/d|X|x)$)/; return reg.test(obj);} //#endregion //隨機數function GetRandomNum(Min, Max) { var Range = Max - Min; var Rand = Math.random(); return (Min + Math.round(Rand * Range));} //#endregion相信本文所述對大家運用javascript進行WEB程序設計有不錯的借鑒價值。