XCX 3.0 String Methods

String objects in XCX are immutable. Methods return a new string and do not modify the original.

Properties

.length: Returns the number of Unicode code points in the string (e.g., "zażółć".length is 6). Used without parentheses.

Methods

Method	Signature	Description
`.upper()`	`() → s`	Converts all characters to uppercase.
`.lower()`	`() → s`	Converts all characters to lowercase.
`.trim()`	`() → s`	Removes leading/trailing whitespace.
`.replace(f, t)`	`(s, s) → s`	Replaces all occurrences of `f` with `t`.
`.slice(s, e)`	`(i, i) → s`	Returns substring from index `s` up to `e`.
`.indexOf(s)`	`(s) → i`	Returns index of first occurrence, or -1.
`.lastIndexOf(s)`	`(s) → i`	Returns index of last occurrence, or -1.
`.startsWith(s)`	`(s) → b`	Returns true if string starts with `s`.
`.endsWith(s)`	`(s) → b`	Returns true if string ends with `s`.
`.toInt()`	`() → i`	Parses string to Integer; `halt.error` if fail.
`.toFloat()`	`() → f`	Parses string to Float; `halt.error` if fail.
`.split(s)`	`(s) → array:s`	Splits by separator `s`; returns array of strings.

Examples

s: raw = "  XCX-Language  ";
s: clean = raw.trim().lower().replace("-", "_"); --- "xcx_language"

i: start = "Programming".indexOf("gram");       --- 3
s: part = "Programming".slice(0, 4);            --- "Prog"

i: age = "25".toInt();
array:s: parts = "a,b,c".split(",");           --- {"a", "b", "c"}