Working with arrays in JavaScript

[Mollie]

Hi;
I have an array and I want to do an operation on it. Let me explain with an example:
Suppose we have the following array (the length of the array may be any number)
[1,2,3,4]
If I select any of the array cells, I want the subsequent cells to be removed from the array.
For example, if cell 3 is selected, cell 4 is removed from the array, or if cell 2 is selected, cells 3 and 4 are deleted.
Thank you for your help.

[TellMeWhy]

3 hours ago, Mollie said:

Hi;
I have an array and I want to do an operation on it. Let me explain with an example:
Suppose we have the following array (the length of the array may be any number)
[1,2,3,4]
If I select any of the array cells, I want the subsequent cells to be removed from the array.
For example, if cell 3 is selected, cell 4 is removed from the array, or if cell 2 is selected, cells 3 and 4 are deleted.
Thank you for your help.

What's your goal here?

I have the following : 

<script>
document.addEventListener("DataPageReady", function arrays(){

var arr = [1,2,3,4];

var arrblnk=[];

var val = 2;

var position = arr.indexOf(val);

for (i=0; i <= position;  i++){

arrblnk.push(arr[i]);

}

});

</script>

the array - arr

A blank array - arrblnk

the value in the array - val

position of that value in the array - position

for loop will go through each value until the position, and then 'push' insert the values in the blank array up until the said value