Add helper.ts #68
Add helper.ts #68
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WalkthroughA new TypeScript helper module has been introduced, providing five utility functions: string formatting, array summation, email validation, function debouncing, and array chunking. Each function is exported with appropriate typing, offering commonly used utilities for string, array, and function operations. Changes
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: 1
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📒 Files selected for processing (1)
helper.ts(1 hunks)
🧰 Additional context used
🔍 MCP Research (2 servers)
Context7: 1. No exact or closely matching library named "helper.ts" was found; existing helper-related libraries do not match the described TypeScript helper module (functions.resolve-library-id for "helper.ts").
2. The closest debounce-related library is "/xnimorz/use-debounce," a React debounce hook, not matching the generic TypeScript debounce function (functions.resolve-library-id for "debounce").
3. No exact matches found for "isValidEmail," "calculateSum," or "formatString"; existing libraries are broader or unrelated (functions.resolve-library-id for each term).
Linear: - No documents found with the name or content related to "helper.ts" in the workspace (Linear workspace document search).
- No issues specifically referencing "helper.ts" were found, including within the Engineering team (Linear issue searches).
- The Engineering team ID is "298f2742-fd06-4837-9ede-ec5b5f14e9d7" (Linear team list).
- No issue labels or documentation specifically related to "helper.ts" or "helper" were found (Linear issue labels and document searches).
🔇 Additional comments (4)
helper.ts (4)
1-3: LGTM! Well-implemented string formatting utility.The function correctly combines trimming, case normalization, and whitespace replacement to create URL-friendly strings. The regex pattern
/\s+/gefficiently handles multiple consecutive whitespace characters.
5-7: LGTM! Proper array summation implementation.The function correctly uses
reducewith an initial value of 0, which handles empty arrays appropriately and follows functional programming best practices.
9-12: LGTM! Appropriate basic email validation.The regex provides reasonable basic email validation that catches common invalid formats. While not RFC 5322 compliant, this level of validation is suitable for most practical applications without being overly complex.
14-23: LGTM! Well-implemented debounce function with good TypeScript generics.The function correctly implements debouncing with proper timeout management and excellent generic typing. The use of
Parameters<T>ensures type safety for function arguments.Note: The
NodeJS.Timeouttype indicates this is intended for Node.js environments. For browser compatibility, consider usingnumber | NodeJS.Timeoutor a conditional type.
| export function chunk<T>(array: T[], size: number): T[][] { | ||
| 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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Add input validation for the size parameter.
The function correctly implements array chunking, but lacks validation for the size parameter. A size of 0 or negative values would cause an infinite loop.
Add input validation to prevent infinite loops:
export function chunk<T>(array: T[], size: number): T[][] {
+ if (size <= 0) {
+ throw new Error('Chunk size must be greater than 0');
+ }
const chunks: T[][] = [];
for (let i = 0; i < array.length; i += size) {
chunks.push(array.slice(i, i + size));
}
return chunks;
}📝 Committable suggestion
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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 chunk<T>(array: T[], size: number): T[][] { | |
| const chunks: T[][] = []; | |
| for (let i = 0; i < array.length; i += size) { | |
| chunks.push(array.slice(i, i + size)); | |
| } | |
| return chunks; | |
| } | |
| export function chunk<T>(array: T[], size: number): T[][] { | |
| if (size <= 0) { | |
| throw new Error('Chunk size must be greater than 0'); | |
| } | |
| const chunks: T[][] = []; | |
| for (let i = 0; i < array.length; i += size) { | |
| chunks.push(array.slice(i, i + size)); | |
| } | |
| return chunks; | |
| } |
🤖 Prompt for AI Agents
In helper.ts around lines 25 to 31, the chunk function lacks validation for the
size parameter, which can cause an infinite loop if size is 0 or negative. Add
input validation at the start of the function to check if size is a positive
integer greater than zero, and throw an error or return an empty array if the
validation fails to prevent infinite loops.
Summary by CodeRabbit