patterns_5.md

Right-Aligned Triangle

Instructions

Your task is to extend the functionality of the generatePattern(style, dimensions) function to support a new pattern type: right-aligned-triangle.

For this assignment, the style parameter will be "right-aligned-triangle", and the dimensions parameter will be an array containing a single number [size] where:

• size specifies the number of rows in the triangle.
• Each row is right-aligned, meaning that the * characters are preceded by spaces ( ) to align them to the right edge of the triangle.

Pattern Description

• The triangle starts with 1 * on the rightmost column of the first row and increases in width by 1 * for each subsequent row.
• Spaces ( ) are added before the * characters in each row to ensure the triangle is aligned to the right.
• If size is 0, the triangle is considered empty, and the function should return an empty string.

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Examples

generatePattern("right-aligned-triangle", [3]);
// Output:
  *
 **
***

generatePattern("right-aligned-triangle", [5]);
// Output:
    *
   **
  ***
 ****
*****

generatePattern("right-aligned-triangle", [1]);
// Output:
*

generatePattern("right-aligned-triangle", [0]);
// Output: (empty string)

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Notes

• The right-aligned triangle pattern should properly handle edge cases:
  • If size is 1, the function should return a single * without any spaces.
  • If size is 0, the function should return an empty string.
  • For larger values of size, ensure the correct number of spaces and * characters per row.
• Each line of the output should be separated by a newline character (\n).
• Ensure that the function works for both small and large values of size.