regexpvalidator

# RegExpValidation Validations Test For Strings, Numbers and Objects in JavaScript using Regular Expressions ## Install Install with [npm](https://www.npmjs.com) ```sh $ 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('a@a.com') //=> false regExpValidation.containsOnlyLetters('a123') //=> false regExpValidation.containsOnlyLetters(' ') //=> false regExpValidation.containsOnlyLetters('_$%#@') //=> false ``` ##### .containsOnlySmallCaseLetters(string) Method allows you to test if the string contain only small case letters ``` regExpValidation.containsOnlySmallCaseLetters('regularexpressions') //=> true regExpValidation.containsOnlySmallCaseLetters('regularExpressions') //=> false ``` ##### .containsOnlyCapsLetters(string) Method allows you to test if the string contain only capital case letters ``` regExpValidation.containsOnlyCapsLetters('REGULAREXPRESSIONS') //=> true regExpValidation.containsOnlySmallCaseLetters('ReGULaREXPreSSIONS') //=> false ``` ##### .matchStringWithPattern(string,pattern) Method allows you to test if the pattern matches in the string ##### .isValidEmail(string) Method allows you to test if the string is a valid email ``` regExpValidation.isValidEmail('a@a.com') //=> true regExpValidation.isValidEmail('abcd') //=> false regExpValidation.isValidEmail(' ') //=> false regExpValidation.isValidEmail('_$%#@') //=> 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' ```