String

Helper functions that have to do with strings.

Functions

capitalizeFirstLetter()

function capitalizeFirstLetter(string): string;

Defined in: functions/string.ts:38

Helper function to capitalize the first letter of a string.

Parameters

Parameter	Type
string	string

Returns

string

---

escapeHTMLCharacters()

function escapeHTMLCharacters(string): string;

Defined in: functions/string.ts:55

Helper function to replace all of the ampersands, less than signs, greater than signs, double quotes, and single quotes in a string with the escaped counterparts. For example, < will be replaced with <.

Parameters

Parameter	Type
string	string

Returns

string

---

getNumConsecutiveDiacritics()

function getNumConsecutiveDiacritics(string): number;

Defined in: functions/string.ts:70

Helper function to get the number of consecutive diacritics in a string.

This is useful for sanitization purposes, since many subsequent diacritics can be a sign of a malicious string.

Parameters

Parameter	Type
string	string

Returns

number

---

hasDiacritic()

function hasDiacritic(string): boolean;

Defined in: functions/string.ts:94

Helper function to check if a string has one or more diacritics in it.

Parameters

Parameter	Type
string	string

Returns

boolean

---

hasEmoji()

function hasEmoji(string): boolean;

Defined in: functions/string.ts:108

Helper function to check if a string has one or more emoji in it.

Under the hood, this uses the same regex check as the Zod library.

Parameters

Parameter	Type
string	string

Returns

boolean

---

hasWhitespace()

function hasWhitespace(string): boolean;

Defined in: functions/string.ts:113

From: https://stackoverflow.com/questions/1731190/check-if-a-string-has-white-space

Parameters

Parameter	Type
string	string

Returns

boolean

---

isASCII()

function isASCII(str): boolean;

Defined in: functions/string.ts:118

Helper function to determine if a string only contains ASCII characters.

Parameters

Parameter	Type
str	string

Returns

boolean

---

isFirstLetterCapitalized()

function isFirstLetterCapitalized(string): boolean;

Defined in: functions/string.ts:126

From: https://stackoverflow.com/questions/8334606/check-if-first-letter-of-word-is-a-capital-letter

Parameters

Parameter	Type
string	string

Returns

boolean

---

isKebabCase()

function isKebabCase(string): boolean;

Defined in: functions/string.ts:136

“kebab-case” is the naming style of using all lowercase and hyphens, like “foo-bar”.

An empty string is not considered to be kebab-case.

Parameters

Parameter	Type
string	string

Returns

boolean

---

isLowerCase()

function isLowerCase(string): boolean;

Defined in: functions/string.ts:141

Helper function to test if a string contains only lowercase ASCII letters (a through z).

Parameters

Parameter	Type
string	string

Returns

boolean

---

isSemanticVersion()

function isSemanticVersion(versionString): boolean;

Defined in: functions/string.ts:150

Helper function to check if a given string is a valid Semantic Version.

Parameters

Parameter	Type
versionString	string

Returns

boolean

See

https://semver.org/

---

isUpperCase()

function isUpperCase(string): boolean;

Defined in: functions/string.ts:155

Helper function to test if a string contains only uppercase ASCII letters (A through Z).

Parameters

Parameter	Type
string	string

Returns

boolean

---

kebabCaseToCamelCase()

function kebabCaseToCamelCase(string): string;

Defined in: functions/string.ts:160

Helper function to convert a string from kebab-case to camelCase.

Parameters

Parameter	Type
string	string

Returns

string

---

kebabCaseToPascalCase()

function kebabCaseToPascalCase(string): string;

Defined in: functions/string.ts:170

Helper function to convert a string from kebab-case to PascalCase.

Parameters

Parameter	Type
string	string

Returns

string

---

normalizeString()

function normalizeString(string): string;

Defined in: functions/string.ts:186

Helper function to normalize a string. Specifically, this performs the following steps:

• Removes any non-printable characters, if any.
• Normalizes all newlines to “\n”.
• Normalizes all spaces to “ “.
• Removes leading/trailing whitespace.

Parameters

Parameter	Type
string	string

Returns

string

See

https://stackoverflow.com/questions/11598786/how-to-replace-non-printable-unicode-characters-javascript

---

parseSemanticVersion()

function parseSemanticVersion(versionString): SemanticVersion | undefined;

Defined in: functions/string.ts:211

Helper function to parse a Semantic Versioning string into its individual constituents. Returns undefined if the submitted string was not a proper Semantic Version.

Parameters

Parameter	Type
versionString	string

Returns

| SemanticVersion | undefined

See

https://semver.org/

---

removeLinesBetweenMarkers()

function removeLinesBetweenMarkers(string, marker): string;

Defined in: functions/string.ts:265

Helper function to remove lines from a multi-line string. This function looks for a “-start” and a “-end” suffix after the marker. Lines with markets will be completely removed from the output.

For example, by using a marker of “@foo”:

line1
# @foo-start
line2
line3
# @foo-end
line4

Would return:

line1
line4

Parameters

Parameter	Type
string	string
marker	string

Returns

string

---

removeLinesMatching()

function removeLinesMatching(string, match): string;

Defined in: functions/string.ts:294

Helper function to remove lines from a multi-line string matching a certain other string.

Parameters

Parameter	Type
string	string
match	string

Returns

string

---

removeNonPrintableCharacters()

function removeNonPrintableCharacters(string): string;

Defined in: functions/string.ts:306

Helper function to remove all non-printable characters from a string.

Parameters

Parameter	Type
string	string

Returns

string

See

https://stackoverflow.com/questions/11598786/how-to-replace-non-printable-unicode-characters-javascript

---

removeWhitespace()

function removeWhitespace(string): string;

Defined in: functions/string.ts:311

Helper function to remove all whitespace characters from a string.

Parameters

Parameter	Type
string	string

Returns

string

---

satisfiesSemanticVersion()

function satisfiesSemanticVersion(version, minimumVersion): boolean;

Defined in: functions/string.ts:321

Helper function to check if a semantic version is equal to or greater than a second semantic version.

Parameters

Parameter	Type
version	string
minimumVersion	string

Returns

boolean

Throws

If either the version or minimum version are not valid semantic versions.

---

titleCaseToKebabCase()

function titleCaseToKebabCase(string): string;

Defined in: functions/string.ts:356

Helper function to convert a string from TitleCase (PascalCase) to kebab-case.

Parameters

Parameter	Type
string	string

Returns

string

---

trimPrefix()

function trimPrefix(string, prefix, trimAll?): string;

Defined in: functions/string.ts:371

Helper function to trim a prefix from a string, if it exists. Returns the trimmed string.

Parameters

Parameter	Type	Default value	Description
string	string	undefined	The string to trim.
prefix	string	undefined	The prefix to trim.
trimAll	boolean	false	Whether to remove multiple instances of the prefix, if they exist. If this is set to true, the prefix must only be a single character.

Returns

string

---

trimSuffix()

function trimSuffix(string, prefix): string;

Defined in: functions/string.ts:389

Helper function to trim a suffix from a string, if it exists. Returns the trimmed string.

Parameters

Parameter	Type
string	string
prefix	string

Returns

string

---

truncateString()

function truncateString(string, maxLength): string;

Defined in: functions/string.ts:402

Helper function to truncate a string to a maximum length. If the length of the string is less than or equal to the provided maximum length, the string will be returned unmodified.

Parameters

Parameter	Type
string	string
maxLength	number

Returns

string