image validation in javascript
function isValidImage(imagename) { imagefile_value = imagename; var checkimg = imagefile_value.toLowerCase(); if (!checkimg.match(/(\.jpg|\.gif|\.png|\.JPG|\.GIF|\.PNG|\.jpeg|\.JPEG)$/)) { return false;…
Read MoreTo calculate date difference between two given dates
function timeDifference(startDate,endDate) { date1 = startDate; date2 = endDate; laterdate = date1.split(“-“); laterY=laterdate; laterM=laterdate; laterD=laterdate;…
Read MoreTo check whether given date is less than current date
function IslessThanCurrentYear(year) { var d = new Date(); currentyear = d.getFullYear(); if (year>currentyear) { return…
Read MoreTo check leap year
function IsLeapYear(year) { if ((year%4)==0) { if ((year%100==0) && (year%400)!=0) { return false; } else…
Read MoreURL validation
function checkURL(url) { var theurl=url; var tomatch= /^(http?:\/\/|ftp:\/\/)(www\.)?+\.(com|org|net|mil|edu|ca|co.uk|co.in|com.au|ac.in|gov|gov.in)(\/)?/; if (tomatch.test(theurl)) { return true; } else…
Read Morevalidate email address
function echeck(str) { var at=”@” var dot=”.” var lat=str.indexOf(at) var lstr=str.length var ldot=str.indexOf(dot) if (str.indexOf(at)==-1){…
Read Moreto check alphanumeric character
function isAlphaNumeric(valueToTest) { var myRegxp = /^+$/; if(myRegxp.test(valueToTest) == 1) { return true; } else…
Read Morefunction to restrict text area character
function checkTextLength(obj,restrictLength,truncFlag) { if(obj.value.length>restrictLength){ if(truncFlag) obj.disabled = true; alert(“Text should not be more than ”…
Read Moretrim function in javascript
function trim(sString) { sTrimmedString = “”; if (sString != “”) { var iStart = 0;…
Read Morevalidate credit card number using javascript
function isValidCreditCard(cardNo) { var str=cardNo; var digitsOnly = str.replace(/ /g,”);//replace unwanted space var sum =…
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