Regular Expressions For New Line
A regular expression to match a new line (linebreaks).
/[\r\n]+/
Java Package Name Regular Expression
A regular expression to parse and match Java packages names.
/^([a-zA-Z_]\w*)+([.][a-zA-Z_]\w*)+$/
Hashtag (#) Regular Expression
A regular expression to match hashtags (#) used in social media platforms.
/^#[^ [email protected]#$%^&*(),.?":{}|<>]*$/
Emoji Regular Expression
A regular expression that matches emojis.
/(\u00a9|\u00ae|[\u2000-\u3300]|\ud83c[\ud000-\udfff]|\ud83d[\ud000-\udfff]|\ud83e[\ud000-\udfff])/
Credit Card Number Regular Expressions
A collection of useful Regular Expressions to parse and validate Credit Card Numbers like Visa, MasterCard, American Express, and Discover.
/^(?:4[0-9]{12}(?:[0-9]{3})?|[25][1-7][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$/Latitude and Longitude Regular Expression
A regular expression to parse and validate Latitude and Longitude values.
/^((\-?|\+?)?\d+(\.\d+)?),\s*((\-?|\+?)?\d+(\.\d+)?)$/
URL Slug Regular Expression
A regular expression to parse and validate user-friendly URL slugs.
/^[a-z0-9]+(?:-[a-z0-9]+)*$/
MAC Address Regular Expression
A regular expression to parse and validate MAC (media access control address) address.
/^((([a-f0-9]{2}:){5})|(([a-f0-9]{2}-){5}))[a-f0-9]{2}$/iHexadecimal Color Code Regular Expression
A regular expression to parse and validate a hexadecimal color value.
/^#?([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$/HTML Markup Regular Expression
A regular expression that matches HTML markup.
/<(\w+)[^>]*>(.*?<\/\1>)?/