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Added CartesianProduct.js#1082
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6fff99d Added cartesianProduct.js
xinzhe822ee7ef67 Added CartesianProduct.test.js
xinzhe822374df97 Solve import error
xinzhe8222e9740e Format code style
xinzhe8228796336 Update CartesianProduct.js
itsvinayak6cd36d1 Update CartesianProduct.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| /** | ||
| * @function cartesianProduct | ||
| * @description Generate Cartesian Product of Two Sets. | ||
| * @param {*[]} setA -First set | ||
| * @param {*[]} setB -Second set | ||
| * @return {*[]} -Cartesian Product of setA and setB | ||
| */ | ||
| const cartesianProduct = (setA, setB) => { | ||
| // Check if input sets are not empty. | ||
| if (!setA || !setB || !setA.length || !setB.length) { | ||
| return [] | ||
| } | ||
| const product = [] | ||
itsvinayak marked this conversation as resolved. Show resolvedHide resolvedUh oh!There was an error while loading.Please reload this page. | ||
| for(let elementA of setA){ | ||
| for(let elementB of setB){ | ||
| product.push([ elementA, elementB]) | ||
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| } | ||
| } | ||
| return product | ||
| } | ||
| export { cartesianProduct } | ||
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| import { cartesianProduct } from '../CartesianProduct' | ||
| describe('cartesianProduct', () => { | ||
| it('should return null if not enough info for calculation', () => { | ||
| const product1 = cartesianProduct([1], null) | ||
| const product2 = cartesianProduct([], null) | ||
| expect(product1).toBeNull() | ||
| expect(product2).toBeNull() | ||
| }) | ||
| it('should calculate the product of two sets', () => { | ||
| const product1 = cartesianProduct([1], [1]) | ||
| const product2 = cartesianProduct([1, 2], [3]) | ||
| const product3 = cartesianProduct([1, 2], [3, 4]) | ||
| expect(product1).toEqual([[1, 1]]) | ||
| expect(product2).toEqual([[1, 3], [2, 3]]) | ||
| expect(product3).toEqual([[1, 3], [1, 4], [2, 3], [2, 4]]) | ||
| }) | ||
| }) |
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