undefined arrays

[bentleykf]

is there any other way of testing if an array element has no value other than using this kind of if-then statement

if (tempImageArray != undefined) {....}

i'm asking because the undefined method of testing this does not work in internet explorer on a mac.

 

[bentleykf]

lol, dont worry, i've solved my own problem again
duh...

if (tempImageArray[messageLoop]) {...}

 

[harmmeijer]

To check if a value for an array has been set or not you should check if the element equals null:
<script>
var arrValues = new Array(7);
alert(arrValues[2]==null);
alert(arrValues[200]==null);
//checking an element at 200 does not change the array's length
alert(arrValues.length);
arrValues[200]=&quot;hello&quot;;
alert(arrValues.length);
alert(arrValues[200]==null);
</script>

To remove an element you can set it to null allthough this will not change the length of an Array in javascript.