// Add the element to the result array result.push(prop); } } // Return the array containing duplicate elements return result; }; // Output the result of the function with a sample array console.log(find_duplicate_in_array([1, 2, -2, 4, 5, 4, 7, 8, 7, 7, 71, 3, 6]))...
Array.prototype.find()是 JavaScript 数组的一个方法,它返回数组中满足提供的测试函数的第一个元素的值。如果没有找到,则返回undefined。 基础概念 find()方法接受一个回调函数作为参数,这个回调函数会被数组的每个元素依次执行,直到找到一个使回调函数返回true的元素。这个元素就是find()方法的结果。
find-if-an-item-is-in-a-javascript-array http://stackoverflow.com/questions/143847/best-way-to-find-if-an-item-is-in-a-javascript-array Best way to find if an item is in a JavaScript array? [duplicate] up vote589down votefavorite 153 This question already has an answer here: How...
Write a Python program to find the first duplicate element in a given array of integers. Return -1 if there are no such elements.Sample Solution:Python Code :def find_first_duplicate(nums): num_set = set() no_duplicate = -1 for i in range(len(nums)): if nums[i] in num_set: re...
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I recently saw a fun programming challenge of trying to find a duplicate element in an array. The problem was stated as follows. You have an integer array of length n. Each element in the array can only take on the values of [0, n-1]. Try to find all integer values that are dupl...
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