TRIM 
Strips all whitespace or any characters you specify from both the beginning and end of the input string and returns the result.
js
TRIM(input_string, characters_to_trim)Parameters 
input_string- The string to be trimmed.characters_to_trim- Characters to remove from the start and end of the string. Defaults to whitespace.(optional)
Examples 
js
TRIM(" Hello World  ")Result: Hello World
js
TRIM("--Foo-Bar--", "-")Result: Foo-Bar