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1.1 KiB
1.1 KiB
id, title, challengeType, dashedName
| id | title | challengeType | dashedName |
|---|---|---|---|
| 68b7687dded630607aceccad | Challenge 46: 2nd Largest | 28 | challenge-46 |
--description--
Given an array, return the second largest distinct number.
--hints--
secondLargest([1, 2, 3, 4]) should return 3.
assert.equal(secondLargest([1, 2, 3, 4]), 3);
secondLargest([20, 139, 94, 67, 31]) should return 94.
assert.equal(secondLargest([20, 139, 94, 67, 31]), 94);
secondLargest([2, 3, 4, 6, 6]) should return 4.
assert.equal(secondLargest([2, 3, 4, 6, 6]), 4);
secondLargest([10, -17, 55.5, 44, 91, 0]) should return 55.5.
assert.equal(secondLargest([10, -17, 55.5, 44, 91, 0]), 55.5);
secondLargest([1, 0, -1, 0, 1, 0, -1, 1, 0]) should return 0.
assert.equal(secondLargest([1, 0, -1, 0, 1, 0, -1, 1, 0]), 0);
--seed--
--seed-contents--
function secondLargest(arr) {
return arr;
}
--solutions--
function secondLargest(arr) {
const unique = [...new Set(arr)];
unique.sort((a, b) => b - a);
return unique[1];
}