String Utilities
11 functions for string manipulation and transformation
split(delimiter)
Split a string into an array
join(separator)
Join array elements into a string
replace(search, replacement)
Replace all occurrences of a substring
regexReplace(pattern, replacement, flags?)
Regex replace with optional flags
trim()
Trim whitespace from both ends
lower()
Convert string to lowercase
upper()
Convert string to uppercase
startsWith(prefix)
Check if string starts with prefix (returns boolean)
endsWith(suffix)
Check if string ends with suffix (returns boolean)
slice(start, end?)
Extract a portion of a string or array
contains(substring)
Check if string contains substring (returns boolean)