Nested Loops: Number Triangle

Use nested loops to print a triangle where row 1 is 1, row 2 is 12, and so on up to row 4. Each row starts at 1 and counts up to the row number.

Expected output:

1
12
123
1234

Expected Output:

Topics:

Loops

Code Editor

Tab to indent · Ctrl+Enter to run · Ctrl+Space to expand shortcuts (clog, fn, fori)

Your Output

Run your code to see the output here...

Test Cases

Run your code to see test case results.