js little problem, help me

kider11

alert shows temparray [0], it should show //2016122909584262.jpg, how to execute eval's code,

var index = document.getElementById ("itemno"). selectedIndex;

var temparray = new Array ();
temparray.push ("// 2016122909584262.jpg");
temparray.push ("// 20161214113441953.jpg");
temparray.push ("");
eval ("alert ('temparray [" + index + "]')");

song1984

You are just alert, what about eval.

kider11

Because index is a variable

liub950511

Change eval("alert('temparray["+index+"]')"); to eval("alert(temparray["+index+"])");
Enough.

kider11

Thanks, the problem has been solved,