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added throwing an error when array with <3 items is passed

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devcer
2021-10-15 21:49:29 +05:30
parent b3377bb79c
commit 67ec915d97
2 changed files with 5 additions and 3 deletions
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2
Dynamic-Programming/MaxProductOfThree.js
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@ -8,7 +8,7 @@
export function maxProductOfThree(arrayItems) { export function maxProductOfThree(arrayItems) {
// if size is less than 3, no triplet exists // if size is less than 3, no triplet exists
let n = arrayItems.length let n = arrayItems.length
if (n < 3) return -1 if (n < 3) throw new Error('Triplet cannot exist with the given array')
let max1 = arrayItems[0], let max1 = arrayItems[0],
max2 = -1, max2 = -1,
max3 = -1, max3 = -1,

6
Dynamic-Programming/tests/MaxProductOfThree.test.js
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@ -1,8 +1,10 @@
import { maxProductOfThree } from '../MaxProductOfThree' import { maxProductOfThree } from '../MaxProductOfThree'
describe('MaxProductOfThree', () => { describe('MaxProductOfThree', () => {
it('expects to return -1 for array with only 2 numbers', () => { it('expects to throw error for array with only 2 numbers', () => {
expect(maxProductOfThree([1, 3])).toBe(-1) expect(() => {
maxProductOfThree([1, 3])
}).toThrow('Triplet cannot exist with the given array')
}) })
it('expects to return 300 as the maximum product', () => { it('expects to return 300 as the maximum product', () => {