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Add array helper utilities #7

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eyaprak wants to merge 1 commit into from
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Add array helper utilities #7

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24 changes: 24 additions & 0 deletions src/lib/array-helpers.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
/**
* Array helper utilities
*/

export function chunk<T>(array: T[], size: number): T[][] {
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@github-actions github-actions bot Jan 20, 2026

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🚨 CRITICAL

The chunk function will create an infinite loop if size is 0 or negative. Add a guard clause: if (size <= 0) throw new Error('Size must be positive') or return [array] to prevent this.

const chunks: T[][] = [];
for (let i = 0; i < array.length; i += size) {
chunks.push(array.slice(i, i + size));
}
return chunks;
}

export function unique<T>(array: T[]): T[] {
return [...new Set(array)];
}

export function shuffle<T>(array: T[]): T[] {
const result = [...array];
for (let i = result.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[result[i], result[j]] = [result[j], result[i]];
}
return result;
}
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