JavaScript strcasecmp

gistfile1.txt

//source
function strcasecmp (a, b){  
	var size = a.length>=b.length?a.length:b.length;
	var counter=0;
	var aLow=a.toLowerCase();
	var bLow=b.toLowerCase();
	
	for(var i=0;i<size;i++){
	 
		if((i<=aLow.length || i<=bLow.length) && aLow[i]!=bLow[i]){
			counter++;
		}
	}

	return counter;
}

//test
strcasecmp('HELLO', 'hello');

//result
0