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lof_confirm.js
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lof_confirm.js
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function LoFConfirm(nestedArray) {
// Helper function to collect all subarray paths
function collectPaths(arr, path = []) {
let paths = [];
if (Array.isArray(arr)) {
paths.push(path);
for (let i = 0; i < arr.length; i++) {
paths = paths.concat(collectPaths(arr[i], path.concat(i)));
}
}
return paths;
}
// Helper function to duplicate the subarray at a given path
function duplicateAtPath(arr, path) {
if (path.length === 0) return;
let parentArray = arr;
for (let i = 0; i < path.length - 1; i++) {
parentArray = parentArray[path[i]];
}
const index = path[path.length - 1];
parentArray.splice(index + 1, 0, JSON.parse(JSON.stringify(parentArray[index])));
}
// Collect all subarray paths
const paths = collectPaths(nestedArray);
// Filter out the top-level path to avoid duplicating the entire array
const validPaths = paths.filter(path => path.length > 0);
// If there are no subarrays to duplicate, return the array as is
if (validPaths.length === 0) return nestedArray;
// Select a random path to duplicate
const randomPath = validPaths[Math.floor(Math.random() * validPaths.length)];
// Duplicate the subarray at the selected path
duplicateAtPath(nestedArray, randomPath);
return nestedArray;
}
{
// Test cases
let testCase1 = [];
let testCase2 = [[]];
let testCase3 = [[], []];
let testCase4 = [[[[], [], []]], [[[], [], []], [[], [], []]]];
console.log(JSON.stringify(LoFConfirm(testCase1))); // Output: []
console.log(JSON.stringify(LoFConfirm(testCase2))); // Output: [[], []]
console.log(JSON.stringify(LoFConfirm(testCase3))); // Output: [[], [], []]
console.log(JSON.stringify(LoFConfirm(testCase4))); // Possible outputs: [[[[], [], []]], [[[], [], []], [[], [], [], []]]], [[[[], [], []]], [[[], [], []], [[[], [], []], [[], [], []]]]], or other variations
let test = [[], []];
console.log(JSON.stringify(LoFConfirm(test))); // Possible outputs: [[[[], [], []]], [[[], [], []], [[], [], [], []]]], [[[[], [], []]], [[[], [], []], [[[], [], []], [[], [], []]]]], or other variations
console.log(JSON.stringify(LoFConfirm(test))); // Possible outputs: [[[[], [], []]], [[[], [], []], [[], [], [], []]]], [[[[], [], []]], [[[], [], []], [[[], [], []], [[], [], []]]]], or other variations
console.log(JSON.stringify(LoFConfirm(test))); // Possible outputs: [[[[], [], []]], [[[], [], []], [[], [], [], []]]], [[[[], [], []]], [[[], [], []], [[[], [], []], [[], [], []]]]], or other variations
console.log(JSON.stringify(LoFConfirm(test))); // Possible outputs: [[[[], [], []]], [[[], [], []], [[], [], [], []]]], [[[[], [], []]], [[[], [], []], [[[], [], []], [[], [], []]]]], or other variations
console.log(JSON.stringify(LoFConfirm(test))); // Possible outputs: [[[[], [], []]], [[[], [], []], [[], [], [], []]]], [[[[], [], []]], [[[], [], []], [[[], [], []], [[], [], []]]]], or other variations
}