RegExpValidation

Validations Test For Strings, Numbers and Objects in JavaScript using Regular Expressions

Install

Install with npm

$ npm install regexpvalidator --save

Usage

var regExpValidation = require('regexpvalidator')

API

RegExpValidator provides a range of APIs for you to validate and filter javascript data types

Validations

Strings

.containsOnlyLetters(string)

Method allows you to test if the string contain only letters

regExpValidation.containsOnlyLetters('regularExpressions')
//=> true
regExpValidation.containsOnlyLetters('REGULAREXPRESSSION')
//=> true
regExpValidation.containsOnlyLetters('[email protected]')
//=> false
regExpValidation.containsOnlyLetters('a123')
//=> false
regExpValidation.containsOnlyLetters(' ')
//=> false
regExpValidation.containsOnlyLetters('_$%#@')
//=> false

.containsOnlySmallCaseLetters(string)

Method allows you to test if the string contain only small case letters

regExpValidation.containsOnlySmallCaseLetters('regularexpressions')
//=> true
regExpValidation.containsOnlySmallCaseLetters('regularExpressions')
//=> false

.containsOnlyCapsLetters(string)

Method allows you to test if the string contain only capital case letters

regExpValidation.containsOnlyCapsLetters('REGULAREXPRESSIONS')
//=> true
regExpValidation.containsOnlySmallCaseLetters('ReGULaREXPreSSIONS')
//=> false

.matchStringWithPattern(string,pattern)

Method allows you to test if the pattern matches in the string

.isValidEmail(string)

Method allows you to test if the string is a valid email

regExpValidation.isValidEmail('[email protected]')
//=> true
regExpValidation.isValidEmail('abcd')
//=> false
regExpValidation.isValidEmail(' ')
//=> false
regExpValidation.isValidEmail('_$%#@')
//=> false

Numbers

.isNumber(string)

Method allows you to test if the string is a valid number

regExpValidation.isNumber(45)
//=> true
regExpValidation.isNumber('65')
//=> true
regExpValidation.isNumber('-39')
//=> true
regExpValidation.isNumber('-0')
//=> true
regExpValidation.isNumber('-39myFox')
//=> false

.isDecimalNumber(string)

Method allows you to test if the string is a valid decimal number

regExpValidation.isDecimalNumber(8.97)
//=> true
regExpValidation.isDecimalNumber('-8.74')
//=> true
regExpValidation.isDecimalNumber(45)
//=> false
regExpValidation.isDecimalNumber('-0.00')
//=> true
regExpValidation.isDecimalNumber('-39.088myFox')
//=> false

.hasNDecimalPlaces(string,n)

Method allows you to test if the string has n decimal places

regExpValidation.hasNDecimalPlaces(8.97,2)
//=> true
regExpValidation.hasNDecimalPlaces('-8.74',2)
//=> true
regExpValidation.hasNDecimalPlaces(45,0)
//=> true
regExpValidation.hasNDecimalPlaces('-8.74',3)
//=> false
regExpValidation.hasNDecimalPlaces('-0.00',2)
//=> true

Filter

.filterNumbers(string)

Method allows you filter all the numbers in a string

regExpValidation.filterNumbers('abcd')
//=> ''
regExpValidation.filterNumbers(-39)
//=> '-39'
regExpValidation.filterNumbers('3_BOXES_HAVE_55_BALLS')
//=> '355'

.filterCharacters(string)

Method allows you filter all the characters in a string

regExpValidation.filterCharacters('abcd')
//=> 'abcd'
regExpValidation.filterCharacters(-39)
//=> ''
regExpValidation.filterCharacters('3_BOXES_HAVE_55_BALLS')
//=> 'BOXESHAVEBALLS'