30 lines
948 B
JavaScript
30 lines
948 B
JavaScript
/**
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* Return a shallow copy of an array with two items swapped.
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*
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* @param {Array} array - The source array
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* @param {Number} leftIndex - Index of the first item
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* @param {Number} rightIndex - Index of the second item
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* @returns {Array} new array with the left and right items swapped
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*/
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export const swapArrayItems = (array, leftIndex = 0, rightIndex = 0) => {
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const copy = array.slice();
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if (leftIndex >= array.length || leftIndex < 0 || rightIndex >= array.length || rightIndex < 0) {
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return copy;
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}
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const temp = copy[leftIndex];
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copy[leftIndex] = copy[rightIndex];
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copy[rightIndex] = temp;
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return copy;
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};
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/**
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* Return an array with all duplicate items from the given array
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*
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* @param {Array} array - The source array
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* @returns {Array} new array with all duplicate items
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*/
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export const getDuplicateItemsFromArray = (array) => [
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...new Set(array.filter((value, index) => array.indexOf(value) !== index)),
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];
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