🛠️KUtils
KUTHULU Utilities. This is a shared library of commonly used functions.
append
Joins five strings together.
let a = 'Hello';
let b = ' my';
let c = ' name';
let d = ' is';
let e = ' John';
let result = contract.append(a, b, c, d, e);Input
a, b, c, d, e
string
The strings to be concatenated.
Output
return value
string
The concatenated string.
_toLower
Converts all uppercase characters in a string to lowercase.
let str = 'Hello World';
let result = contract._toLower(str);Input
str
string
The string to be converted.
Output
return value
string
The converted string.
strlen
Returns the length of a given string.
let str = 'Hello World';
let result = contract.strlen(str);Input
str
string
The string to get the length.
Output
return value
uint256
The length of the string.
stringsEqual
Compares two strings for equality.
let str1 = 'Hello';
let str2 = 'Hello';
let result = contract.stringsEqual(str1, str2);Input
a, b
string
The strings to be compared.
Output
return value
bool
True if the strings are equal, false otherwise.
URI and String Validation
isValidURI
Checks if the given string is a valid URI according to RFC3986 URI Generic Syntax.
let str = 'https://example.com';
let result = contract.isValidURI(str);Input
str
string
The string to be checked.
Output
return value
bool
True if the string is a valid URI, false otherwise.
isValidGroupString
Checks if the given string is a valid group string.
let str = 'HelloWorld';
let result = contract.isValidGroupString(str);Input
str
string
The string to be checked.
Output
return value
bool
True if the string is a valid group string, false otherwise.
isValidString
Checks if the given string is a valid string.
let str = 'HelloWorld';
let result = contract.isValidString(str);Input
str
string
The string to be checked.
Output
return value
bool
True if the string is valid, false otherwise.
Integer to String Conversion
toString
Converts a uint256 value to its string representation.
let value = 123456;
let result = contract.toString(value);Input
value
uint256
The value to be converted.
Output
return value
string
The string representation of the input value.
addressToString
Converts an Ethereum address to its string representation.
let addr = '0x742d35Cc6634C0532925a3b844Bc454e4438f44e';
let result = contract.addressToString(addr);Input
addr
address
The address to be converted.
Output
return value
string
The string representation of the input address.
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