Exercise : Print Pattern Rows : While loop

printPatternRowsWhileLoop.md

Given the number of rows, use a while loop to print the following pattern.

For rows = 2, the pattern should print like this:
*
**

For rows = 4, the pattern should print like this:
*
**
***
****

rows will always be a positive integer.

function printPattern(rows){
// write your code here
}
printPattern(2);
printPattern(4);