Question: Is there a function to remove the last cell from array?

it's a string array like: `{"a","b","c",""}`.

Answer: 
The length of an array is immutable, but you can create a new array without the empty `""` strings:

```
string[] newArray = myArray.Where(str => str != "").ToArray();

```
1. Create new array equal to existing array size -1
2. aNewArray = aOldArray

Ofcourse you could just null the last element in your array, but that would result in problems later. Otherwise, use a nice flexible list.