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GeezerVison is showing github.com — JavaScript/Bit-Manipulation/UniqueElementInAnArray.js at master · TheAlgorithms/JavaScript Expand file tree/ Copy pathUniqueElementInAnArray.jsMore file actions 13 lines (12 loc) · 406 Bytes / Copy pathUniqueElementInAnArray.jsFile metadata and controls13 lines (12 loc) · 406 Bytes 1 2 3 4 5 6 7 8 9 10 11 12 13 /** * Finds the unique element in an array where all other elements are repeated twice. * * @param {number[]} arr - The input array of integers. * @returns {number} The unique element. * * @example * const arr = [1, 2, 1, 2, 3]; * const uniqueElement = findUniqueElement(arr); // Returns 3 */ const findUniqueElement = (arr) => arr.reduce((acc, val) => acc ^ val, 0) export { findUniqueElement } |
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