Start a new Kumite
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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.

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Code
Diff
  • -- Code here
    SELECT * FROM customers;
    • -- Code here
    • SELECT * FROM customers;
Mathematics
Algorithms
Logic
Numbers
Code
Diff
  • def prime_checker(n):
        if n in [2, 3, 5]:
            return True
        elif n % 2 == 0 or n % 3 == 0 or n % 5 == 0:
            return False
        
        a = int(n ** 0.5 / 30)
        b = [7, 11, 13, 17, 19, 23, 29, 31]
        
        for i in [30 * j for j in range(a + 1)]:
            if True in [n % (i + q) == 0 for q in b if i + q is not n]:
                return False
        return True 
    • """
    • https://en.wikipedia.org/wiki/Primality_test
    • This one has lesser tests or usage of % operator.
    • An alternative using primality mod 30 = 2 * 3 * 5 instead of 6 = 2 * 3
    • """
    • def prime_checker(n):
    • if n in [2, 3, 5]:
    • return True
    • elif n % 2 == 0 or n % 3 == 0 or n % 5 == 0:
    • return False
    • a = int(n ** 0.5 / 30)
    • b = [7, 11, 13, 17, 19, 23, 29, 31]
    • for i in [30 * j for j in range(a + 1)]:
    • if True in [n % (i + q) == 0 for q in b if i + q is not n]:
    • return False
    • return True
Code
Diff
  • returnhundred=()=>100
    • function returnhundred() {
    • return 10 ** 2;
    • }
    • returnhundred=()=>100
Code
Diff
  • class Component {
      constructor(dom) {
        this.dom = dom
      }
    
      onCreate() {
        return this.dom;
      }
    }
    • function Component(dom) {
    • this.dom = dom;
    • class Component {
    • constructor(dom) {
    • this.dom = dom
    • }
    • this.onCreate = function() {
    • onCreate() {
    • return this.dom;
    • }
    • }
(format t "Welcome to Common Lisp, made with secret alien technology.")
Code
Diff
  • function addArr(arr){
      return arr.reduce((a,c) => a+c,0)||null;
    }
    • function addArr(arr){
    • if(arr.length === 0) return null
    • let final = 0
    • arr.forEach(num => {
    • final += num
    • })
    • return final
    • return arr.reduce((a,c) => a+c,0)||null;
    • }