Weird (but simple) issue with arrays

Hey Guys,

Look at the following code:

var testArray = new Array();

for(i=0;i<3;i++){
	testArray[testArray.length] = new Array();
	testArray[testArray.length][0] = "hello";
}

Code (markup):

Everything works fine until we get to the last line in the for loop:

testArray[testArray.length][0] = "hello";

Code (markup):

The weird thing is if I change that last line to:

testArray[i][0] = "hello";

Code (markup):

it works fine. Can anyone help???

 

for(i=0;i<3;i++){
	testArray[testArray.length] = new Array(); // Here you are adding an empty array to the end of testArray. So testArray.length is already incremented by 1 here 
	testArray[testArray.length][0] = "hello";  // testArray.length here is no longer the same value as above
}

Code (markup):

Either change testArray.length to i as you've tried before or combine the 2 lines in the loop to:

testArray[testArray.length] = new Array("hello");

Code (markup):

 

Your a genius! I knew it was something simple that I was overlooking. Thank you, thank you, thank you!