Useful jQuery RegExp Examples

//jQuery RegExp for Numbers //select integers only var intRegex = /[0-9 -()+]+$/; //match any ip address var ipRegex = 'bd{1,3}.d{1,3}.d{1,3}.d{1,3}b'; //match number in range 0-255 var num0to255Regex = '^([01][0-9][0-9]|2[0-4][0-9]|25[0-5])$'; //match number in range 0-999 var num0to999Regex = '^([0-9]|[1-9][0-9]|[1-9][0-9][0-9])$'; //match ints and floats/decimals var floatRegex = '[-+]?([0-9]*.[0-9]+|[0-9]+)'; //Match Any number from 1 to 50 inclusive var number1to50Regex = /(^[1-9]{1}$|^[1-4]{1}[0-9]{1}$|^50$)/gm; //jQuery RegExp for Validation //match email address var emailRegex = '^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}$'; //match credit card numbers var creditCardRegex = '^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35d{3})d{11})$'; //match username var usernameRegex = '/^[a-z0-9_-]{3,16}$/'; //match password var passwordRegex = '/^[a-z0-9_-]{6,18}$/'; //Match 8 to 15 character string with at least one upper case letter, one lower case letter, and one digit (useful for passwords). var passwordStrengthRegex = /((?=.*d)(?=.*[a-z])(?=.*[A-Z]).{8,15})/gm; //match elements that could contain a phone number var phoneNumber = /[0-9-()+]{3,20}/; //jQuery RegExp for Dates //MatchDate (e.g. 21/3/2006) var dateRegex = /(d{1,2}/d{1,2}/d{4})/gm; //match date in format MM/DD/YYYY var dateMMDDYYYRegex = '^(0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])[- /.](19|20)dd$'; //match date in format DD/MM/YYYY var dateDDMMYYYRegex = '^(0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])[- /.](19|20)dd$'; //jQuery RegExp for URL’s //match a url var urlRegex = '/^(https?://)?([da-z.-]+).([a-z.]{2,6})([/w .-]*)*/?$/'; //match a url slug (letters/numbers/hypens) var urlslugRegex = '/^[a-z0-9-]+$/'; //match a url string (Fixes spaces and querystrings) var urlRegex = /(https?://)?([da-z.-]+).([a-z.]{2,6})([/w.-=?]*)*/?/ //jQuery RegExp for Vowels //select vowels only var vowelRegex = /^[aeiou]/; //jQuery RegExp for Whitespace //select whitespace var whiteSpaceRegex = '^[ t]+'; //select whitespace and tabs var whiteSpaceRegex = '^[ t]+|[ t]+$'; //select whitespace and linebreaks var whiteSpaceRegex = '[ trn]'; //replace newline characters with tags newLineToBr = function(str) { return str.replace(/(rn|[rn])/g, ''); } //jQuery RegExp for Domain Names //match domain name (with HTTP) var domainRegex = /(.*?)[^w{3}.]([a-zA-Z0-9]([a-zA-Z0-9-]{0,65}[a-zA-Z0-9])?.)+[a-zA-Z]{2,6}/igm; //match domain name (www. only) var domainRegex = /[^w{3}.]([a-zA-Z0-9]([a-zA-Z0-9-]{0,65}[a-zA-Z0-9])?.)+[a-zA-Z]{2,6}/igm; //match domain name (alternative) var domainRegex = /(.*?).(com|net|org|info|coop|int|com.au|co.uk|org.uk|ac.uk|)/igm; //match sub domains: www, dev, int, stage, int.travel, stage.travel var subDomainRegex = /(http://|https://)?(www.|dev.)?(int.|stage.)?(travel.)?(.*)+?/igm; //jQuery RegExp for Images //Match jpg, gif or png image var imageRegex = /([^s]+(?=.(jpg|gif|png)).2)/gm; //match all images var imgTagsRegex = //ig; //match just .png images //Other Useful jQuery RegExp Examples //match RGB (color) string var rgbRegex = /^rgb((d+),s*(d+),s*(d+))$/; //match hex (color) string var hexRegex = '/^#?([a-f0-9]{6}|[a-f0-9]{3})$/'; //Match Valid hexadecimal colour code var hexRegex = /(#?([A-Fa-f0-9]){3}(([A-Fa-f0-9]){3})?)/gm; //match a HTML tag (v1) var htmlTagRegex = '/^< ([a-z]+)([^<]+)*(?:>(.*)< /1>|s+/>)$/'; //match HTML Tags (v2) var htmlTagRegex = /(< (/?[^>]+)>)/gm; //match /product/123456789 var productUrlRegex = '(/product/)?+[0-9]+'; //Match Letters, numbers and hyphens var lnhRegex = /([A-Za-z0-9-]+)/gm; //match all .js includes var jsTagsRegex = //ig;</code></pre> //These patterns are intended for reference purposes and many have not been extensively tested. Please use with caution and test thoroughly before use.