trim

Explanation	Remove all leading and trailing whitespace in the string, and if there are consecutive whitespace in the middle of the string, make it one.
Call format	var s = trim( string )
Return value	String with whitespace removed
Arguments	String string	Original character string
Exception	None
Example of use	`var s = " あいうえおかきくけこ "; print("[" + trim(s) + "]\n");`
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