Solution

[ValentynaBahyrly]

[x] DEMO LINK

[x ]Create a Sum component accepting a and b props and rendering a paragraph with a text like Sum of 2 and 1 is 3. Replace numbers with actual values. If the a or b props are not passed, set them to 0.

[x] The App should contain the next Sum components:
[x] - a = 2 and b = 3;
[x] - a = -5 and b = 5;
[x] - just a = 10;
[x] - just b = 5;
[x] - no params at all.

[mateacademy-ai-mentor]

Review Summary

Your solution is approved. All functional requirements are met, tests pass, and the Sum component correctly handles props with defaults and renders the expected output. However, there are two style improvements worth noting for future reference: 1. Use template literals for string interpolation - CHECKLIST ITEM #2 requires using template literal syntax inside JSX content. Instead of multiple JSX expressions: Sum of {a} and {b} is {a + b} Use a single template literal: {Sum of ${a} and ${b} is ${a + b}}. 2. Avoid redundant default props - When calling with no params or just one param, you don't need to explicitly pass a={0} or b={0}. The component already defines these defaults, so calling or works without the extra props. These are style-level suggestions rather than functional issues—your implementation is correct and complete.

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Footnotes

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[mateacademy-ai-mentor]

This violates checklist item #2: Use string interpolation inside tag content. The content should use template literal syntax: {Sum of ${a} and ${b} is ${a + b}}

[mateacademy-ai-mentor]

Checklist item #2 violation: Use string interpolation (template literals) inside tag content. Use {`Sum of ${a} and ${b} is ${a + b}`} instead of separate expressions.

[mateacademy-ai-mentor]

According to requirements, this should be <Sum a={10} /> (just a=10, b should default to 0)

[mateacademy-ai-mentor]

According to requirements, this should be <Sum b={5} /> (just b=5, a should default to 0)