StringExtension extension

Extension on String to provide additional functionality and utility methods.

This extension enhances the capabilities of String by adding methods for:

  • Validating string formats (e.g., email, URL, phone number)
  • Manipulating string content (e.g., reversing, removing characters)
  • Extracting information from strings
  • Converting string formats
  • Checking string properties
  • File type detection
  • Text formatting and truncation
on

Properties

countWord → int

Available on String, provided by the StringExtension extension

Counts the number of words in the string.
no setter
fromBase64 → String?

Available on String, provided by the StringExtension extension

Decodes a base64 encoded string.
no setter
isAlphabet → bool

Available on String, provided by the StringExtension extension

Checks if the string contains only alphabetic characters.
no setter
isAlphaNumeric → bool

Available on String, provided by the StringExtension extension

Checks if the string contains only alphanumeric characters.
no setter
isAudio → bool

Available on String, provided by the StringExtension extension

Checks if the string represents an audio file path (MP3, WAV, AAC, or M4A).
no setter
isBase64 → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid base64 encoded string.
no setter
isCapital → bool

Available on String, provided by the StringExtension extension

Checks if the string is in capital case.
no setter
isCreditCard → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid credit card number.
no setter
isCsv → bool

Available on String, provided by the StringExtension extension

Checks if the string represents a CSV file path.
no setter
isDate → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid date in 'YYYY-MM-DD' format.
no setter
isDocument → bool

Available on String, provided by the StringExtension extension

Checks if the string represents a document file path (PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX).
no setter
isEmail → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid email address.
no setter
isHexColor → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid hexadecimal color code.
no setter
isHtml → bool

Available on String, provided by the StringExtension extension

Checks if the string contains HTML tags.
no setter
isImage → bool

Available on String, provided by the StringExtension extension

Checks if the string represents an image file path (SVG, PNG, JPG, JPEG, GIF, WEBP, BMP, or HEIC).
no setter
isIPv4 → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid IPv4 address.
no setter
isIPv6 → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid IPv6 address.
no setter
isJpg → bool

Available on String, provided by the StringExtension extension

Checks if the string represents a JPG or JPEG file path.
no setter
isJson → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid JSON format.
no setter
isLower → bool

Available on String, provided by the StringExtension extension

Checks if the string is in lowercase.
no setter
isNumber → bool

Available on String, provided by the StringExtension extension

Checks if the string contains only numeric characters.
no setter
isPDF → bool

Available on String, provided by the StringExtension extension

Checks if the string represents a PDF file path.
no setter
isPhone → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid phone number.
no setter
isPng → bool

Available on String, provided by the StringExtension extension

Checks if the string represents a PNG file path.
no setter
isSentence → bool

Available on String, provided by the StringExtension extension

Checks if the string is in sentence case.
no setter
isSvg → bool

Available on String, provided by the StringExtension extension

Checks if the string represents an SVG file path.
no setter
isTime → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid time in 'HH:MM' format.
no setter
isTitle → bool

Available on String, provided by the StringExtension extension

Checks if the string is in title case.
no setter
isTxt → bool

Available on String, provided by the StringExtension extension

Checks if the string represents a TXT file path.
no setter
isUpper → bool

Available on String, provided by the StringExtension extension

Checks if the string is in uppercase.
no setter
isURL → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid URL.
no setter
isUUID → bool

Available on String, provided by the StringExtension extension

Checks if the string is a valid UUID.
no setter
isVideo → bool

Available on String, provided by the StringExtension extension

Checks if the string represents a video file path (MP4, AVI, MOV, or MKV).
no setter
occurrences → Map<String, int>

Available on String, provided by the StringExtension extension

Counts the occurrences of each character in the string.
no setter
removeDigits → String

Available on String, provided by the StringExtension extension

Removes all digits from the string.
no setter
removeHtmlTags → String

Available on String, provided by the StringExtension extension

Removes all HTML tags from the string.
no setter
removeSpecialChars → String

Available on String, provided by the StringExtension extension

Removes all special characters, leaving only alphanumeric values and spaces.
no setter
removeWhitespace → String

Available on String, provided by the StringExtension extension

Removes all whitespace from the string.
no setter
reverse → String

Available on String, provided by the StringExtension extension

Reverses the entire string.
no setter
toBase64 → String

Available on String, provided by the StringExtension extension

Encodes the string to base64.
no setter
toCamelCase → String

Available on String, provided by the StringExtension extension

Converts a string to camelCase.
no setter
toCapitalCase → String

Available on String, provided by the StringExtension extension

Converts the string to capital case (first letter of each word capitalized).
no setter
toDouble → double?

Available on String, provided by the StringExtension extension

Converts the string to a double.
no setter
toggleCase → String

Available on String, provided by the StringExtension extension

Toggles the case of each character in the string.
no setter
toInt → int?

Available on String, provided by the StringExtension extension

Converts the string to an integer.
no setter
toKebabCase → String

Available on String, provided by the StringExtension extension

Converts a string to kebab-case.
no setter
toSentenceCase → String

Available on String, provided by the StringExtension extension

Converts the string to sentence case (first letter capitalized, rest lowercase).
no setter
toSlug → String

Available on String, provided by the StringExtension extension

Converts the string to a URL-friendly slug.
no setter
toSnakeCase → String

Available on String, provided by the StringExtension extension

Converts a string to snake_case.
no setter
toTitleCase → String

Available on String, provided by the StringExtension extension

Converts the string to title case (first letter of each word capitalized, rest lowercase).
no setter

Methods

append(String string) → String

Available on String, provided by the StringExtension extension

Appends the given string to the end of this string.
concat(String concat) → String

Available on String, provided by the StringExtension extension

Concatenates the given string to this string, separated by a space.
countOccurrence(String string) → int

Available on String, provided by the StringExtension extension

Counts the number of occurrences of a substring within this string.
extractEmails() → List<String>

Available on String, provided by the StringExtension extension

Extracts all valid email addresses from the string.
extractUrls() → List<String>

Available on String, provided by the StringExtension extension

Extracts all valid URLs from the string.
ifEmpty([String value = 'null']) → String

Available on String, provided by the StringExtension extension

Returns a default value if the string is empty.
inRange(int min, int max) → bool

Available on String, provided by the StringExtension extension

Checks if the string's length is within the specified range.
mask({int upto = 4, String mask = '*', bool atEnd = false}) → String?

Available on String, provided by the StringExtension extension

Masks a portion of the string with the specified character.
maxLen(int max) → bool

Available on String, provided by the StringExtension extension

Checks if the string's length is less than or equal to the specified maximum.
minLen(int min) → bool

Available on String, provided by the StringExtension extension

Checks if the string's length is greater than or equal to the specified minimum.
prepend(String string) → String

Available on String, provided by the StringExtension extension

Prepends the given string to the start of this string.
regex(String source) → bool

Available on String, provided by the StringExtension extension

Checks if the string matches the given regex pattern.
removeFirst([int? upto]) → String

Available on String, provided by the StringExtension extension

Removes the first upto characters from the string.
removeLast([int upto = 1]) → String

Available on String, provided by the StringExtension extension

Removes the last upto characters from the string.
truncate(int length, {String ellipsis = '...'}) → String

Available on String, provided by the StringExtension extension

Truncates the string to the specified length and adds an ellipsis if truncated.

Static Methods

isBool(String value) → bool

Available on String, provided by the StringExtension extension

Checks if the string represents a boolean value.