[SOLVED] NOT change indexes when using Splice()?

[galvin]

If you have an array with 10 elements and you use splice() to remove the 3rd element (index of 2), it changes the index of all the ones after the one you removed.

 

Is there a way to make it so the indexes do NOT change at all?

 

So if I had an array of....

 

var arr = new Array(10);

arr[0] = "Jani";

arr[1] = "Hege";

arr[2] = "Stale";

arr[3] = "Jim";

arr[4] = "Borge";

arr[5] = "Mike";

arr[6] = "Joe";

arr[7] = "Cathy";

arr[8] = "Sarah";

arr[9] = "Lauren";

 

ANd then I use splice() to remove "Jim", I'd like the array to now be...

 

arr[0] = "Jani";

arr[1] = "Hege";

arr[2] = "Stale";

 

arr[4] = "Borge";

arr[5] = "Mike";

arr[6] = "Joe";

arr[7] = "Cathy";

arr[8] = "Sarah";

arr[9] = "Lauren";

 

There's gotta be a way, right?

[fry2010]

could you instead overwrite that array?

 

so arr[3] = '';

 

What specifically u looking for?

 

Or you could try:

 

var max_array = arrayMaximum(arr[]);

var array_split_value = 3;

 

for(z = array_split_value; z < max_array; z++)

{

  arr[z] = arr[z+1];

}

 

You might not be able to do that exactly as Iv done it, im not familiar with js.

[Ken2k7]

Just set the one you want to remove to undefined.

 

arr[#] = undefined;

[galvin]

I can't make it "undefined" because I need to continue to display the array values on the webpage.  After setting them to "undefined", they then display the actual word "undefined" on the page.  Good idea, but it won't work for my purposes unfortunately.

 

I feel like there has to be a way to tell javascript to NOT change the array indexes even after you remove one using Splice(), but I am not familiar enough with Javascript to know how.

 

If anyone else has any ideas let me know.

 

Thanks,

Greg

[Ken2k7]

I said undefined, not the string "undefined". By default, arr[#] is undefined if not defined. Learn JavaScript. Test it out.

 

Also, if you're going to print it out using a loop, you can check for that case even if it is the string undefined, can't you?

[galvin]

I was only using quotes in that post, sorry.  It was set to undefined in my code (not a string).  But it still made the word "undefined" print on the screen.

[Ken2k7]

I don't know how you're printing it out, but you should do something like this:

 

var e = new Array();
e[3] = 4;

var start = 0;
while (e[start++] !== undefined) {
     document.body.innerHTML += e[start];
}

 

Do know that it's an infinite loop. It's just for hints.

[galvin]

Ill give that type of thing a try, thanks!