Common regex checks that you can use in the JavaScript world without looking for them on Google!

Features:

• Some common regex checks that we all need to do sometimes. :blush:
• Call the functions as per your need and a boolean value is returned.
• Light weight package.
• Many useful functions in the package.

How to install:

npm i regex-simple-checks

How to use:

• Import the package into your application as usual
  • import {containOnlyLetters} from '@gurjinder7/regex-simple-checks'
• Checking functions that return boolean:
  • containAnyDigits(pattern) - returns true is the pattern contains a digit
  • containsAnyNonWordCharacter(pattern) - returns true if the pattern contains any non word character.
    • This is a broad search for symbols and includes whitespace as well.
  • containOnlyLetters(pattern) - returns true if pattern contains only letters
  • containsNoSymbol(pattern) - returns true if patterns has no symbol
    • Can be used for alphanumeric pattern or only number and only digits patterns
  • containsAnySymbol(pattern) - returns true if one of the following symbol is there in the pattern
    • ~`!@#$%^&*()_-+=|\}{]["':;<,>.?/
  • containsThisSymbol(pattern, symbol) - returns true if the pattern contains the symbol.
    • containsThisSymbol("qwe%asd","%") - returns true
  • containsThisOrThatSymbol(pattern, symbol1, symbol2) - returns true if the pattern contains either of the symbols
    • containsThisOrThatSymbold("jhkgjh&kKJh","@","&") - returns true`
  • startsWithADigitAndEndsWithALetter(pattern) - returns true if the patterns starts and ends with one or more than one digit.
    • pattern : digits-letters
    • Eg: 12asdlkaskd,2asda etc.
  • startsWithALetterAndEndsWithADigit(pattern) - returns true if the pattern starts with a letter and ends with a digit.
    • one or more than one letter and one or more than one digit.
    • pattern : letters-digits
    • Eg: aada112,a2323,asda3
  • startsWithADigitAndEndsWithADigit(pattern) - returns true if the pattern start with a digit and ends with a digit.
    • one or more than one digit on both ends.
    • pattern : digits-letters-digits
    • Eg: 2asde2,23asdssad12
  • startsWithALetterAndEndsWithALetter(pattern) - returns true if the pattern start and ends with one or more letter.
    • pattern : letters-digits-letters
    • Eg; asd332asd, a32423432a
• Match function that returns index:
  • firstDigitMatchIndex(pattern)- returns index of first match of the digit in the pattern, otherwise -1
  • firstNonWordMatchIndex(pattern)- returns index of first match of the non-word in the pattern, otherwise -1
  • firstWhiteSpaceMatchIndex(pattern)- returns index of first match of the white space in the pattern, otherwise -1
  • firstSymbolMatchIndex(pattern, symbol)- returns index of first match of the symbol argument in the pattern, otherwise -1

Note: make sure to send the argument(s) as needed otherwise regex passes the test on empty values and returns true.