trim() enables the developer to remove any whitespace (any characters that represents a space) from the beginning and the end of a string.
trim() takes an input string as its argument and removes all whitespace from the beginning and the end of that string. If the string is a sentence with spaces between words then trim() will leave the whitespace between the words:
trim(‘ The cat sat on the mat ’)
trim(‘ Spaceship ’)
Would return the strings:
‘The cat sat on the mat’
‘Spaceship’
Adding the two strings together would produce the following string:
‘The cat sat on the matSpaceship’