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@polgubau/utils

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A collection of utility functions for TypeScript

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/** * Returns the first element of an array * @param arr * @returns the first element of the array * @example first([1, 2, 3]) // 1 */ declare function first<T>(arr: T[]): T | undefined; /** * Returns the last element of an array * @param arr * @returns the last element of the array * @example last([1, 2, 3]) // 3 */ declare function last<T>(arr: T[]): T | undefined; /** * Removes the first element of an array * @param arr * @returns a new array without the first element * @example removeFirst([1, 2, 3]) // [2, 3] */ declare function removeFirst<T>(arr: T[]): T[]; /** * Removes the last element of an array * @param arr * @returns a new array without the last element * @example removeLast([1, 2, 3]) // [1, 2] */ declare function removeLast<T>(arr: T[]): T[]; export { first, last, removeFirst, removeLast };