How to Count Words Using JavaScript

How to Count Words Using JavaScript.

function countWords(){
	s = document.getElementById("inputString").value;
	s = s.replace(/(^\s*)|(\s*$)/gi,"");
	s = s.replace(/[ ]{2,}/gi," ");
	s = s.replace(/\n /,"\n");
	document.getElementById("wordcount").value = s.split(' ').length;
}
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