StringExtension extension

on

String?

Properties

date → DateTime?: Available on String?, provided by the StringExtension extension
Returns DateTime if string is a date string like "2025-01-01 12:00:00"
no setter
dateOnly → DateTime?: Available on String?, provided by the StringExtension extension
Returns DateTime if string is a date string like "2025-01-01"
no setter
ipv4Tov6 → String?: Available on String?, provided by the StringExtension extension
Convert an IPv4 address to an IPv6 address,
no setter
ipv6Tov4 → String?: Available on String?, provided by the StringExtension extension
Convert an IPv6 address to an IPv4 address,
no setter
isChineseFullName → bool: Available on String?, provided by the StringExtension extension
Returns true if name is a valid Chinese full name.
no setter
isChineseIdNumber → bool: Available on String?, provided by the StringExtension extension
Returns true if id is a valid Chinese resident ID number.
no setter
isCreditCard → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid credit card number
no setter
isDate → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a date
no setter
isDEANumberOfUS → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid US Drug Enforcement Agency
no setter
isEmail → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid email address
no setter
isEmpty → bool: Available on String?, provided by the StringExtension extension
Returns true if string is null or empty
no setter
isIPAddress → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid IPv4 or IPv6 address
no setter
isIPv4 → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid IPv4 address
no setter
isIPv6 → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid IPv6 address
no setter
isJson → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid JSON string
no setter
isNotEmpty → bool: Available on String?, provided by the StringExtension extension
Returns true if string is not empty
no setter
isNumeric → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid number
no setter
isPhoneNumberOfUS → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid US Phone Number
no setter
isQuery → bool: Available on String?, provided by the StringExtension extension
Validates URL query string (handles ? & # fragments, allows empty values)
no setter
isSSNofUS → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid US Society Security Number
no setter
isStrongPassword → bool: Available on String?, provided by the StringExtension extension
Returns true if string match strong password requirements
no setter
isTime → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a time
no setter
isUrl → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a valid url
no setter
time → Time?: Available on String?, provided by the StringExtension extension
Returns Time if string is a time string like "12:00:00"
no setter
timeOnly → Time?: Available on String?, provided by the StringExtension extension
Returns Time if string is a time string like "12:00:00"
no setter

Methods

bytes() → List<int>: Available on String?, provided by the StringExtension extension
Returns a list of the UTF-16 code units of the string.
bytesChunks(int chunkSize) → List<List<int>>: Available on String?, provided by the StringExtension extension
Splits the string's UTF-16 code units (bytes) into a list of chunks.
bytesCount() → int: Available on String?, provided by the StringExtension extension
Calculates the byte count of a string, treating non-ASCII characters as 2 bytes.
capitalize() → String: Available on String?, provided by the StringExtension extension
Returns string with capitalized first letter
chunks(int chunkSize) → List<String>: Available on String?, provided by the StringExtension extension
Splits the string into a list of chunks of a specified size.
isValidFileExtension([List<String>? allowed]) → bool: Available on String?, provided by the StringExtension extension
Returns true if string is a file
json() → dynamic: Available on String?, provided by the StringExtension extension
Returns JSON object if string is a valid JSON string
numeric() → double?: Available on String?, provided by the StringExtension extension
Returns double 0.564 from string percentage like "56.4%" Parse source as a double literal and return its value.
toCamelCase() → String: Available on String?, provided by the StringExtension extension
Converts a string from snake_case or kebab-case to camelCase.
toSnakeCase({String separator = '_'}) → String: Available on String?, provided by the StringExtension extension
Converts a string from camelCase to snake_case.

StringExtension extension

Properties

Methods

extensions library