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// Returns an array of 20 random integers between 0 and 99. The integers may be // repeated. You will call this function in your code. function getRandomArray() { return Array.from({length: 20}, () => Math.floor(Math.random() * 100)); } // You will define a function called hasDuplicate which takes in a random array // returns true if at least one entry in said array is repeated twice. function hasDuplicates(array) { var valuesSoFar = new Map(); for (var i = 0; i < array.length; ++i) { var value = array[i]; if (value in valuesSoFar) { return true; } valuesSoFar[value] = true; } return false; } // Testing your function on five examples for (let i = 0; i < 5; i++) { let array = getRandomArray(); console.log(array); console.log('Is an entry duplicated? ' + hasDuplicates(array)); }
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