isEmpty | Indicates whether the specified string is an empty string ("") (reverse with isNotEmpty method). | value: string | boolean |
isNullOrEmpty | Indicates whether the specified string is null, undefined or an empty string ("") (reverse with isNotNullOrEmpty method). | value: string | null | undefined | boolean |
isBlank | Indicates whether a specified string is empty, or consists only of white-space characters (reverse with isNotBlank method). | value: string | boolean |
isNullOrBlank | Indicates whether a specified string is null, undefined, empty, or consists only of white-space characters (reverse with isNotNullOrBlank method). | value: string | null | undefined | boolean |
isNumber | Indicates whether the specified string is a valid numeric string (reverse with isNotNumber method). | value: string | null | undefined | boolean |
isAlpha | Indicates whether a given value consists only of alphabetic characters (reverse with isNotAlpha method). | value: string | null | undefined | boolean |
isAlphaNumber | Indicates whether the specified string contains only alphabetic characters and numbers (reverse with isNotAlphaNumber method). | value: string | null | undefined | boolean |
isBasicStrongPassword | Indicates whether the specified string contains at least 1 uppercase letter, 1 lowercase letter, 1 number, 1 special character and a minimum length of 12 characters. | value: string | null | undefined | boolean |
containsNumber | Indicates whether the specified string contains at least one numeric digit (reverse with notContainsNumber method). | value: string | null | undefined | boolean |
containsAlpha | Indicates whether the specified string contains at least one alphabetic character (reverse with notContainsAlpha method). | value: string | null | undefined | boolean |
containsSpecialCharacter | Indicates whether a given string contains at least one special character (reverse with notContainsSpecialCharacter method). | value: string | null | undefined | boolean |
containsUpperCase | Indicates whether the specified string contains at least one uppercase letter. | value: string | null | undefined | boolean |
containsLowerCase | Indicates whether the specified string contains at least one lowercase letter. | value: string | null | undefined | boolean |
valueOrEmpty | Returns an empty string if the value is null, undefined, or blank; otherwise, returns the input value. | value: string | null | undefined | string |
removeAccents | Removes accents from a given string. | value: string | string |
join | Concatenates an array of strings using the specified separator between each member. | separator: string , values: (string | null | undefined )[] | string |
countWords | Counts the number of words in a sentence. | sentence: string | null | undefined | number |
toNumber | Converts a string representation of a number to a JavaScript number. | value: string | null | undefined | number |
toBoolean | Converts a string representation to a boolean value. | value: string | null | undefined | boolean |