字符串
一份参考文档，列出了支持字符串
表达式中数据转换的内置便利函数。base64Encode()：base64编码的字符串。
Encode a string as base64.
base64Decode()：一个纯字符串。
Convert a base64 encoded string to a normal string.
extractDomain(): 字符串
Extracts a domain from a string containing a valid URL. Returns undefined if none is found.
extractEmail(): 字符串
Extracts an email from a string. Returns undefined if none is found.
extractUrl(): 字符串
Extracts a URL from a string. Returns undefined if none is found.
extractUrlPath(): 字符串
Extract the path but not the root domain from a URL. For example,
"https://example.com/orders/1/details".extractUrlPath() returns "/orders/1/details/".
hash（algo？：算法）：字符串
Returns a string hashed with the given algorithm.
函数参数
algoOptionalString enum
使用哪种散列算法。
isDomain(): 布尔值
Checks if a string is a domain.
isEmail()：布尔值
Checks if a string is an email.
isEmpty(): 布尔值
Checks if a string is empty.
isNotEmpty(): 布尔值
Checks if a string has content.
isNumeric(): 布尔值
Checks if a string only contains digits.
isUrl(): 布尔值
Checks if a string is a valid URL.
parseJson(): 对象
Equivalent of
JSON.parse(). Parses a string as a JSON object.
引用（标记？：字符串）：字符串
Returns a string wrapped in the quotation marks. Default quotation is
".
函数参数
markOptionalString
使用哪种引号样式。
removeMarkdown(): 字符串
Removes Markdown formatting from a string.
replaceSpecialChars(): 字符串
Replaces non-ASCII characters in a string with an ASCII representation.
removeTags(): 字符串
Remove tags, such as HTML or XML, from a string.
toBoolean()：布尔值
Convert a string to a boolean.
"false", "0", "", and "no" convert to false.
toDateTime()：日期
Converts a string to a Luxon date object.
toDecimalNumber(): 数字
See toFloat
toFloat(): 数字
Converts a string to a decimal number.
toInt(): 数字
Converts a string to an integer.
toSentenceCase(): 字符串
Formats a string to sentence case.
toSnakeCase(): 字符串
Formats a string to snake case.
toTitleCase(): 字符串
Formats a string to title case. Will not change already uppercase letters to prevent losing information from acronyms and trademarks such as iPhone or FAANG.
toWholeNumber(): 数字
Converts a string to a whole number.
urlDecode（entireString？：布尔值）：字符串
Decodes a URL-encoded string. It decodes any percent-encoded characters in the input string, and replaces them with their original characters.
函数参数
entireStringOptionalBoolean
是否解码属于 URI 语法一部分的字符 (true) 或不解码 (false)。
urlEncode（整个字符串？：布尔值）：字符串
Encodes a string to be used/included in a URL.
函数参数
entireStringOptionalBoolean
是否对属于 URI 语法一部分的字符进行编码 (true) 或不编码 (false)。