Kumite (ko͞omiˌtā) is the practice of taking techniques learned from Kata and applying them through the act of freestyle sparring.
You can create a new kumite by providing some initial code and optionally some test cases. From there other warriors can spar with you, by enhancing, refactoring and translating your code. There is no limit to how many warriors you can spar with.
A great use for kumite is to begin an idea for a kata as one. You can collaborate with other code warriors until you have it right, then you can convert it to a kata.
Writing a simple test
Use of a ternary condition
const checkDistance = d => d < 3 ? 'ALMOST THERE' : 'yuh gotta wait a little';function checkDistance(distance) {const threeDistance = 3;const almostMsg = 'ALMOST THERE';const litleMsg = 'yuh gotta wait a little';return distance < threeDistance ? almostMsg : litleMsg;}console.log(checkDistance(1))- const checkDistance = d => d < 3 ? 'ALMOST THERE' : 'yuh gotta wait a little';
// Since Node 10, we're using Mocha. // You can use `chai` for assertions. const chai = require("chai"); const assert = chai.assert; // Uncomment the following line to disable truncating failure messages for deep equals, do: // chai.config.truncateThreshold = 0; // Since Node 12, we no longer include assertions from our deprecated custom test framework by default. // Uncomment the following to use the old assertions: const Test = require("@codewars/test-compat"); describe("Solution", function() { it("should checkDistance", function() { Test.assertEquals(checkDistance(4), "yuh gotta wait a little"); Test.assertEquals(checkDistance(1), "ALMOST THERE"); }); });- // Since Node 10, we're using Mocha.
- // You can use `chai` for assertions.
- const chai = require("chai");
- const assert = chai.assert;
- // Uncomment the following line to disable truncating failure messages for deep equals, do:
- // chai.config.truncateThreshold = 0;
- // Since Node 12, we no longer include assertions from our deprecated custom test framework by default.
- // Uncomment the following to use the old assertions:
// const Test = require("@codewars/test-compat");- const Test = require("@codewars/test-compat");
- describe("Solution", function() {
it("should test for something", function() {// Test.assertEquals(1 + 1, 2);// assert.strictEqual(1 + 1, 2);- it("should checkDistance", function() {
- Test.assertEquals(checkDistance(4), "yuh gotta wait a little");
- Test.assertEquals(checkDistance(1), "ALMOST THERE");
- });
- });
const calculateFine = (limit: number) => (speed: number) => { const diff = speed - limit; if (diff >= 10 && diff < 40) return 1000/((3 ** (3-~~(diff%100/10)) + 1)) return (diff < 10) ? 0 : 500; } export const checkIfAtOrBelowLimit = (acceleration: number[], limit: number) => acceleration.map(calculateFine(limit));- const calculateFine = (limit: number) => (speed: number) => {
- const diff = speed - limit;
if (diff >= 30) return 500;if (diff >= 20) return 250;if (diff >= 10) return 100;return 0;- if (diff >= 10 && diff < 40) return 1000/((3 ** (3-~~(diff%100/10)) + 1))
- return (diff < 10) ? 0 : 500;
- }
- export const checkIfAtOrBelowLimit = (acceleration: number[], limit: number) => acceleration.map(calculateFine(limit));
import random import string def cursed_world(): target = "hello world" letters = [random.choice(string.ascii_lowercase + ' ') for _ in range(11)] generation = 0 while True: generation += 1 score = sum(letters[i] == target[i] for i in range(11)) if score == 11: return "".join(letters) new_letters = letters[:] for i in range(11): if new_letters[i] != target[i]: if random.random() < 0.3: new_letters[i] = random.choice(string.ascii_lowercase + ' ') letters = new_letters- import random
- import string
- def cursed_world():
s = ""for i in range(11):s += chr(round((1/362880) * (2206*i**10 - 110153*i**9 + 2354280*i**8 - 28131474*i**7 + 205908150*i**6 - 950715465*i**5 + 2745571940*i**4 - 4732336636*i**3 + 4357651104*i**2 - 1601282592*i + 37739520)))return s- target = "hello world"
- letters = [random.choice(string.ascii_lowercase + ' ') for _ in range(11)]
- generation = 0
- while True:
- generation += 1
- score = sum(letters[i] == target[i] for i in range(11))
- if score == 11:
- return "".join(letters)
- new_letters = letters[:]
- for i in range(11):
- if new_letters[i] != target[i]:
- if random.random() < 0.3:
- new_letters[i] = random.choice(string.ascii_lowercase + ' ')
- letters = new_letters