Trim leading and trailing whitespace from a string.

Detects most of the phone numbers all over the world

Checks that a password has a minimum of 6 characters, at least 1 uppercase letter, 1 lowercase letter, and 1 number with no spaces.

Email address, most used cases

Attempts to mimic Google search box behavior, returning an array with the separated search strings (that keep the +/- indicator for following operations)

Allows phone numbers with optional country code, optional special characters and whitespace

Safe Password that allow only with a number, a lowercase, a uppercase, and a special character

general purpose HTTP URL regex

Matches text within quotes (", ') and escapes the charecters.

This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number password is 8-16 characters with no space

Besides leap year handling, this takes care of date validation in the yy-mm-dd format.

Matches case insensitive first name, optional unlimited number of middle names and last name separated with space format. Replaced \w with explicit char range for Turkish support. (Äž accepted as first char not to over complex)

Verifies Number is a negative/positive number. Number may be a decimal, but if it is, it requires at least one number before and after the decimal place. Decimal numbers may also be negative or positive. Only 1 decimal place is allowed.

The secret of the Twitterverse.

matches full if condition statment eg: if(condition){ ... } else if(condition){ ... }else{ ... }

Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/

RegEx email /^((?!\.)[\w-_.]*)(@\w+)(\.\w+(\.\w+)?)$/gim; Just playing with Reg Ex. This to validate emails in following ways The email couldn't start or finish with a dot The email shouldn't contain spaces into the string The email shouldn't contain special chars ( mailname@domain.com First group takes the first string with the name of email \$1 => (mailname) Second group takes the @ plus the domain: \$2 => (@domain) Third group takes the last part after the domain : \$3 => (.com)

Simple name matching Matches english names only, you may add international characters to list of characters.

Allows inserting expiry date as MM/YYYY or MM-YYYY format

main symbols and comments are supported

This may be useful or not to test whether a given string is a valid (more or less) html color value. It matches color values such as: #123 - short hex color value #123456 - hex color value rgb(255,255,0) - rgb color value rgba(255,255,0,1.0) - rgba color value hsl(360,100%,100%) - hsl color value hsla(360,100%,100%,0.5334) - hsla color value Regex allows whitespaces between i.e. rgb and (, also between numbers and commas, but not in value like 55% between number and percentage. To change this behaviour simply remove \s*? from appriopriate places.

YourLink - not found AnotherLink - found

Extract resource location, name and query parameters from a URL (JavaScript version)

Replace non-ending string \n by the HTML tag

This regex validates varying types of telephone numbers.

This is a JavaScript port of the URL regex from http://stackoverflow.com/a/190405/384062 that includes a bug fix and some optimization. Mathias Bynens's Regenerate was used to convert unicode escapes. Bug fix: Eliminated stray | falsely allowing querystring to contain | Optimization: Merged alternated character classes in querystring and fragment identifier portions for better performance.

email that accepts the plus (+) symbol

extract video id, index, play list id from youtube url

a mac address separated by dashes or colons.

Credit: https://gist.github.com/FinalAngel/1876898

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Grabs all HTML tags

Matches all valid IP addresses from 0.0.0.0 to 255.255.255.255

search any word with an accent

Find " and ' quoted strings and "orphaned"/single words in a string

Matches ISO 8601 date formats

Capture src attribute of HTML image tags

For float type inputs.