20 lines
579 B
JavaScript
20 lines
579 B
JavaScript
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//#region src/array/initial.ts
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/**
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* Returns a new array containing all elements except the last one from the input array.
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* If the input array is empty or has only one element, the function returns an empty array.
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*
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* @template T The type of elements in the array.
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* @param {T[]} arr - The input array.
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* @returns {T[]} A new array containing all but the last element of the input array.
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*
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* @example
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* const arr = [1, 2, 3, 4];
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* const result = initial(arr);
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* // result will be [1, 2, 3]
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*/
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function initial(arr) {
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return arr.slice(0, -1);
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}
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//#endregion
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export { initial };
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