Add helper.ts #76
Add helper.ts #76
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WalkthroughA new helper module has been created, introducing five utility functions: string formatting, array summing, email validation, function debouncing, and array chunking. Each function is exported for use in other modules. Changes
Sequence Diagram(s)sequenceDiagram
participant Caller
participant HelperModule
Caller->>HelperModule: formatString(input)
HelperModule-->>Caller: formatted string
Caller->>HelperModule: calculateSum(numbers)
HelperModule-->>Caller: sum
Caller->>HelperModule: isValidEmail(email)
HelperModule-->>Caller: boolean
Caller->>HelperModule: debounce(func, delay)
HelperModule-->>Caller: debounced function
Caller->>HelperModule: chunk(array, size)
HelperModule-->>Caller: array of chunks
Estimated code review effort🎯 2 (Simple) | ⏱️ ~7 minutes Poem
Pre-Merge Checks (3 warnings)❌ Failed Checks (3 warnings)
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Actionable comments posted: 2
🧹 Nitpick comments (2)
helper.ts (2)
9-12: Consider more robust email validation for production use.The current regex provides basic email format validation but may not catch all edge cases. For production applications, consider using a more comprehensive validation library or the built-in browser validation APIs.
For more robust validation, consider:
export function isValidEmail(email: string): boolean { // More comprehensive regex or use a validation library return /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/.test(email); }
25-31: Add input validation for robustness.The chunk function logic is correct, but consider adding input validation to handle edge cases:
export function chunk<T>(array: T[], size: number): T[][] { if (size <= 0) { throw new Error('Chunk size must be greater than 0'); } if (!Number.isInteger(size)) { throw new Error('Chunk size must be an integer'); } const chunks: T[][] = []; for (let i = 0; i < array.length; i += size) { chunks.push(array.slice(i, i + size)); } return chunks; }
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📒 Files selected for processing (1)
helper.ts(1 hunks)
🧰 Additional context used
🔍 MCP Research (1 server)
Notion:
- Document "Add TypeScript helper functions" (https://www.notion.so/23496e76cda180cfac92c22f78edd65b) states that a file called helper.ts should include some TypeScript helper functions but should NOT include the function calculateSum because it already exists elsewhere in the codebase.
🔇 Additional comments (1)
helper.ts (1)
1-3: LGTM!Clean implementation for string formatting. The function effectively creates URL-friendly slugs by trimming, lowercasing, and replacing whitespace with hyphens.
| export function calculateSum(numbers: number[]): number { | ||
| return numbers.reduce((acc, num) => acc + num, 0); | ||
| } |
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Remove calculateSum function - violates organizational standards.
According to the documented organizational constraint, the calculateSum function should NOT be included in helper.ts because it already exists elsewhere in the codebase. This violates the established architectural guideline.
Remove this function to comply with organizational standards:
-export function calculateSum(numbers: number[]): number {
- return numbers.reduce((acc, num) => acc + num, 0);
-}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export function calculateSum(numbers: number[]): number { | |
| return numbers.reduce((acc, num) => acc + num, 0); | |
| } |
🤖 Prompt for AI Agents
In helper.ts around lines 5 to 7, remove the entire calculateSum function
because it duplicates functionality that already exists elsewhere in the
codebase, violating organizational standards. Delete the function declaration
and its implementation to comply with the architectural guidelines.
| export function debounce<T extends (...args: any[]) => any>( | ||
| func: T, | ||
| delay: number | ||
| ): (...args: Parameters<T>) => void { | ||
| let timeoutId: NodeJS.Timeout; | ||
| return (...args: Parameters<T>) => { | ||
| clearTimeout(timeoutId); | ||
| timeoutId = setTimeout(() => func(...args), delay); | ||
| }; | ||
| } |
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🛠️ Refactor suggestion
Address return type and environment compatibility issues.
The debounce function has a few issues:
- Return value loss: The debounced function returns
voidbut the original function may return a value - Environment assumption:
NodeJS.Timeoutassumes Node.js environment but may be used in browsers
Consider this improved implementation:
export function debounce<T extends (...args: any[]) => any>(
func: T,
delay: number
): (...args: Parameters<T>) => void {
let timeoutId: ReturnType<typeof setTimeout>;
return (...args: Parameters<T>) => {
clearTimeout(timeoutId);
timeoutId = setTimeout(() => func(...args), delay);
};
}Note: If you need to preserve the return value, consider implementing a promisified version or document that debounced functions don't return values.
🤖 Prompt for AI Agents
In helper.ts around lines 14 to 23, the debounce function currently returns
void, losing the original function's return value, and uses NodeJS.Timeout which
assumes a Node.js environment. To fix this, change the timeoutId type to
ReturnType<typeof setTimeout> for cross-environment compatibility, and update
the return type of the debounced function to void, documenting that the
debounced function does not return the original function's return value or
consider a promisified version if return values are needed.
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