javascript number pattern print

How to print the below pattern using javascript

n = 4

1
2 5
3 6 8
4 7 9 10

I tried the below code but it print the incremental number in row

const pattern = (n) => {
  let count = 1;
  for (let row = 0; row < n; row++) {
    for (let col = 0; col <= row; col++) {
      document.write(count + " ");
      count++;
    }
    document.write("<br/>");
  }
};

pattern(4);

but the expectation is to print incremental number in col

>Solution :

You are almost on goal.. you just a small fix: pretty simple and basic

const pattern = (n) => {
  let count = 1;
  for (let i = 1; i <= n; i++) {
    let row = "";
    let currentNum = count;
    for (let j = 1; j <= i; j++) {
      row += currentNum + " ";
      currentNum += (n - j) ;
    }
    console.log(row);
    count++;
  }
};

pattern(4);

and as your example
instead of console.log you can do

document.write("<br/>");
document.write(row);
count++;