Array partition filter
📝 TypeScript
jeffrey75962
· 21d ago
Splits an array into two arrays based on a predicate, returning both filtered and remaining elements in one call.
TypeScript
export function partition<T>(arr: T[], predicate: (item: T) => boolean): [T[], T[]] { const truthy: T[] = []; const falsy: T[] = []; for (const item of arr) { if (predicate(item)) truthy.push(item); else falsy.push(item); } return [truthy, falsy];
}
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