String Effect

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String Effect

The String effect provides the following built-in operations, wired into the VM and runtime.

Operation	Signature	Description
String.to_int	to_int(value: String) -> Int	Parse a string to an integer. Returns 0 for invalid input.
String.to_float	to_float(value: String) -> Float	Parse a string to a float. Returns 0.0 for invalid input.
String.length	length(s: String) -> Int	Return the length of the string in bytes.
String.charAt	charAt(s: String, index: Int) -> Int	Return the byte at the given index in the string, or -1 if out of bounds.
String.from_char	from_char(code: Int) -> String	Create a single-character string from a Unicode code point. Returns nil for invalid code points (surrogates, out of range).
String.concat	concat(a: String, b: String) -> String	Concatenate two strings.
String.substring	substring(s: String, start: Int, len: Int) -> String	Extract a substring.

Implementation site: Standalone VM