String Functions

RTR provides several built-in functions for string manipulation and operations.

join

Concatenates multiple strings together, with an optional separator.

join("Hello", " ", "World");  /* Returns "Hello World" */
join("a", "b", "c", "-");     /* Returns "a-b-c" */

split

Splits a string into an array of substrings based on a delimiter.

split("Hello World", " ");    /* Returns ["Hello", "World"] */
split("a-b-c", "-");          /* Returns ["a", "b", "c"] */

chr

Converts a number to its corresponding ASCII character.

chr(65);                      /* Returns "A" */
chr(97);                      /* Returns "a" */

ord

Converts a character to its corresponding ASCII code.

ord("A");                     /* Returns 65 */
ord("a");                     /* Returns 97 */

length

Returns the length of a string.

length("Hello");              /* Returns 5 */
length("");                   /* Returns 0 */