My javascript code is printing only one row. I need it to print 10 rows of 20 characters. -


this coin flipping randomizer. need print out 10 rows , 20 columns. stuck. code seems randomize correctly every time click button, displays 20 columns cannot seem print second row. may simple not catching. appreciated.

javascript code

function toss() { var heads = "x "; var tails = "o "; var rows = 0; while(rows < 10) {        var arr = new array(20);     for(var = 0; < arr.length; i++)     {                var val = math.floor( math.random() * 2 );         if(val === 1)         {             arr[i] = " x";         }         else         {             arr[i] = " y";         }            document.getelementbyid("results").innerhtml = arr + "<br />";     }     delete arr;     rows++ } }

html:

<html> <head> <title>coin flip</title> <script src="toss.js" type="text/javascript"></script> <style> #results {     display: block; } </style> </head>  <body> push button flip -> <input type="button" onclick="toss()" value=" flip "> <span id="results"></span> </body> </html>

the problem replacing entire results output each time create row new row. need append instead of replace. change this:

document.getelementbyid("results").innerhtml = arr + "<br />";

to:

document.getelementbyid("results").innerhtml += arr + "<br />";

you need move append of result out of inner loop! if leave append within for loop, see behavior: http://jsfiddle.net/t1s93lqz/3/

jsfiddle: http://jsfiddle.net/t1s93lqz/2/


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