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Name:

trim$() -- remove leading and trailing spaces from its argument

Synopsis:
 
a$=trim$(b$) 

Description:
The trim$-function removes all whitespaces from the left and from the right end of a string and returns the result. Calling trim$ is equivalent to calling rtrim$(ltrim$()).

Example:
do 
	input "Continue ? Please answer yes or no: " a$ 
	a$=lower$(trim$(a$)) 
	if (len(a$)>0 and a$=left$("no",len(a$)) exit 
loop 
Explanation:

This example asks for an answer (yes or no) and removes spaces with trim$ to make the comparison with the string "no" more bulletproof.



Related: ltrim$, rtrim$