Please Help! Typeerror: Array[i] is undefine?

[wizi]

 function setDefaultScores (s1, s2) //s1: vertical, s2: horizontal, (i=s1; j=s2) { 	var arrayDS = new Array();  	for (var i = 0; i < s1.length; i++) 	{ 		for (var j =0; i < s2.length; j++) 		{ 			if (s1.charAt(i) == s2.charAt(j)) 			{ 				arrayDS[i][j] =1; 			} 			else 			{ 				arrayDS[i][j] = 0; 			} 		} 	} }

When I call this function. I got an error "Typeerror: arrayDS is undefined." at arrayDS[j] =1;Can someone show me how to solve this? I don't see anything wrong with this function. Even when I change arrayDS[0] = 1; it still gives me the same error. Thank you very much.

[boen_robot]

You have just one dimensional array. In other words, each array member must also be an array itself, and you must define it at every level.Try it like that:

function setDefaultScores (s1, s2) //s1: vertical, s2: horizontal, (i=s1; j=s2){	var arrayDS = new Array(); 	for (var i = 0; i < s1.length; i++)	{		arrayDS[i] = new Array();		for (var j =0; i < s2.length; j++)		{			if (s1.charAt(i) == s2.charAt(j))			{				arrayDS[i][j] =1;			}			else			{				arrayDS[i][j] = 0;			}		}	}}

[wizi]

Oh, i got it. Thank you so much.