js number input mask code example

Example 1: how to limit characters in number input js

function limit(element)
{
    var max_chars = 2;

    if(element.value.length > max_chars) {
        element.value = element.value.substr(0, max_chars);
    }
}


<!-- HTML -->
<input type="number" onkeydown="limit(this);" onkeyup="limit(this);">

Example 2: how to input a full array in one input in python

n = int(input())
arr = input()   # takes the whole line of n numbers
l = list(map(int,arr.split(' '))) # split those numbers with space( becomes ['2','3','6','6','5']) and then map every element into int (becomes [2,3,6,6,5])