MD. Sakib Khan

A little Mistake in the conditions.
In the outer loop, the condition should be row <= 5
And in the inner loop, the condition should be col <= row
Rest of the code is okay.
Let me know if you understand the problem.

Problem: 5 is kind of mixture of Exercise: Even Odd Numbers and Exercise: Sum of Numbers

For getting the sum of even numbers, your loop variable should start with 2. Because the first even number is two.
And every time when the loop ends, increase its value with 2 until its value reaches 100. (2, 4, 6, 8, 10, … ,100)
like that,

for(let index = 2; index <= 100; index += 2) {

}

and For getting the sum of odd numbers, your loop variable needs to start with 1. like that,
for(let index = 1; index <= 100; index += 2) {

}

Here are the solutions:
Even Sum: https://photos.app.goo.gl/3DSKfy1ckREbBfWQ7
Odd Sum: https://photos.app.goo.gl/WtgB8LWVwAUdXYoj9

Let me know if it helps you.

Hi Sami,

For solving these kinds of pattern problems, you have to use Nested Loops.
For each row, you have to use a loop (Outer loop) and for each column, you have to use another nested loop (Inner Loop)

And for placing the numbers/stars side by side in a row, follow these steps:
(I) Take a variable [In my code, it is Pattern]
(II) Every time when the loop starts, initialize the variable with an empty string (”)
(III) Add the numbers/stars with it.

Here is my Solution:
Star Patterns: https://photos.app.goo.gl/y8fEooUXi1iZby1m8
Number Patterns: https://photos.app.goo.gl/uE2w2G8NudfEc7sK9

As you can see, Each solution is kind of similar with slide differences. You just need to understand, Is the loop variable incremental or decremental. That’s it.

Let me know brother if you understand the way to solve these kinds of problems.

Thank you.

Hi Sami,
Yes, you can solve this problem using Ternary Operators.
Here is the solution: https://photos.app.goo.gl/C31TQMGjr8YP9MTPA
Logic is same as before. If you don’t understand, let me know.
But we shouldn’t do like that. This is pretty ugly and not understandable code.
When the problem needs only if…else to solve,then we should use ternary operators.
If number of conditions is greater than two, then we should use if..else if.. else

Hi Suresh brother,
Welcome to this course and I am very very happy to see your progress.

Here is the keyboard shortcuts:
Ctrl + X for CUT
Ctrl + C for COPY
Ctrl + V for PASTE
Ctrl + Z for UNDO

By these shortcuts, you can also cut,copy,paste the whole line of the code in VS Code.
Let me know if it works for you