Name:Unknown
Clan:ChangYuan HeNan China
Member Since:Nov 2015
Last Seen:May 2025
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Here is an 2D array. Pass it to user's function, and then receive it.
To determine whether array is modified.
Returns true if modified. Otherwise returns false.
var count=0
const dontTouchMyArray=(array,usersFunction)=>{
console.log("array:",array)
/*
var myArr=array.slice(),myArrs=array.map(x=>x.slice())
var userArr=usersFunction(array)
console.log(myArr)
console.log(myArrs)
console.log(userArr)
*/
/* Can you write a good solution heer? */
return ++count<12
}const chai = require("chai");
const assert = chai.assert;
const Test = require("@codewars/test-compat");
describe("Solution", function() {
it("test for bad users", function() {
var array=[[1,2,3],[4,5,6],[7,8,9]],
badUser1=arr=>{
arr[1][0]=0
return arr
},
badUser2=arr=>{
arr[1][0]=4n
return arr
},
badUser3=arr=>{
arr[1]=[0,0,0]
return arr
},
badUser4=arr=>{
arr[1]=[4,5,6,7]
return arr
},
badUser5=arr=>{
arr[1]=[4,5,6,,]
return arr
},
badUser6=arr=>{
arr[1]=[4,5,6]
return arr
},
badUser7=arr=>{
arr[1]={0:4,1:5,2:6}
return arr
},
badUser8=arr=>{
arr[1]="arr[1]"
return "This is your array."
},
badUser9=arr=>{
for(var i=0;i<arr.length;i++) console.log(arr[i])
/* return arr */
},
badUser10=arr=>{
for(var i=0;i<arr.length;i++) console.log(arr[i])
return arr.slice(0,1)
},
badUser11=arr=>{
for(var i=0;i<arr.length;i++) console.log(arr[i])
return arr[1]
}
Test.assertEquals(dontTouchMyArray(array,badUser1), true);
Test.assertEquals(dontTouchMyArray(array,badUser2), true);
Test.assertEquals(dontTouchMyArray(array,badUser3), true);
Test.assertEquals(dontTouchMyArray(array,badUser4), true);
Test.assertEquals(dontTouchMyArray(array,badUser5), true);
Test.assertEquals(dontTouchMyArray(array,badUser6), true);
Test.assertEquals(dontTouchMyArray(array,badUser7), true);
Test.assertEquals(dontTouchMyArray(array,badUser8), true);
Test.assertEquals(dontTouchMyArray(array,badUser9), true);
Test.assertEquals(dontTouchMyArray(array,badUser10), true);
Test.assertEquals(dontTouchMyArray(array,badUser11), true);
});
it("test for good users", function() {
var array=[[1,2,3],[4,5,6],[7,8,9]],
goodUser1=arr=>{
return arr
},
goodUser2=arr=>{
var arr1=arr.slice()
arr1[1][1]=0
return arr
},
goodUser3=arr=>{
var t1=arr[1][1], t2=arr[1]
arr[1][1]=12432234
arr[1]={0:4,1:5,2:6}
/* After doing something */
arr[1][1]=t1
arr[1]=t2
return arr
}
Test.assertEquals(dontTouchMyArray(array,goodUser1), false);
Test.assertEquals(dontTouchMyArray(array,goodUser2), false);
Test.assertEquals(dontTouchMyArray(array,goodUser3), false);
});
});function returnhundred() { //return 100 by lucky O_o var n=Math.floor(Math.random()*100)+100 while(100){ try{ return return100(n) } catch(e){ return returnhundred() } } } function return100(n){ console.log("Try to return",n) if(n!=100) throw Error("It's NOT 100") return 100 }function returnhundred(clаss = "-🤓") {return Math.floor(doMath(f, 0.0504, Math.PI ** (clаss.length - 1) * Math.E - Math.log(gamma(10.7))));};const gamma = x => {if (x < 0.5) {return Math.PI / (Math.sin(Math.PI * x) * gamma(1 - x));} else {x -= 1;let l = 0.99999999999980993;const l0 = [676.5203681218851, -1259.1392167224028, 771.32342877765313,-176.61502916214059, 12.507343278686905, -0.13857109526572012,9.9843695780195716e-6, 1.5056327351493116e-7,];for (let i = 0; i < 8; i++) {l += l0[i] / (x + i + 1);}const t = x + 7.5;return Math.sqrt(2 * Math.PI) * Math.pow(t, x + 0.5) * Math.exp(-t) * l;- function returnhundred() {
- //return 100 by lucky O_o
- var n=Math.floor(Math.random()*100)+100
- while(100){
- try{
- return return100(n)
- }
};const doMath = (f, start, end) => {let res = 0;const base = (end - start) / gamma(0.0000001);for (let i = start; i < end; i += base) {const [left, right] = [f(i), f(i + base)];res += (left + right) / "🤓".length;- catch(e){
- return returnhundred()
- }
return Math.ceil(base * res);};const f = x => {return Math.abs(Math.exp("�".length *Math.sinh(2 *Math.cos((Math.tan(x) % gamma(Math.PI)) * Math.sqrt(314)))) /((1 / 20) * 16));- }
- }
- function return100(n){
- console.log("Try to return",n)
- if(n!=100) throw Error("It's NOT 100")
- return 100
- }
isEven = x => [true,false][x%2] // Previous iteration //const isEven = x => !(Number.isInteger(+x))? undefined : !(x%2) // Previous iteration // isEven = x => !x || !Number.isInteger(x) ? undefined : x % 2 ? false : true; // Previous iteration // isEven = x => x!=~~x?undefined:!(x%2); // Previous iteration // isEven = num => num % 2 === 0 ? true : num % 1 === 0 ? false : undefined; // Previous iteration // function isEven(num) { // return num % 2 === 0 ? true : num % 1 === 0 ? false : undefined;const isEven = x => !(Number.isInteger(+x))? undefined : !(x%2)- isEven = x => [true,false][x%2]
- // Previous iteration
- //const isEven = x => !(Number.isInteger(+x))? undefined : !(x%2)
- // Previous iteration
- // isEven = x => !x || !Number.isInteger(x) ? undefined : x % 2 ? false : true;
- // Previous iteration
- // isEven = x => x!=~~x?undefined:!(x%2);
- // Previous iteration
- // isEven = num => num % 2 === 0 ? true : num % 1 === 0 ? false : undefined;
- // Previous iteration
- // function isEven(num) {
- // return num % 2 === 0 ? true : num % 1 === 0 ? false : undefined;
;-)
function main(){ var greeting = "Hello"; var language = "JS"; console.log(`${greeting}, ${language}!`); }using System;class Kata{public static void Main(){string greeting = "Hello";string language = "C#";Console.WriteLine($"{greeting}, {language}!");}- function main(){
- var greeting = "Hello";
- var language = "JS";
- console.log(`${greeting}, ${language}!`);
- }
main() Test.assertSimilar(rec, "Hello, JS!", "oops~~ ")using NUnit.Framework;using System;using System.IO;[TestFixture]public class KataTests{[Test]public void Prints_expected_output(){var originalConsoleOut = Console.Out; // preserve the original streamvar writer = new StringWriter();Console.SetOut(writer);//ready to listen to consoleKata.Main();writer.Flush(); // when you're done, make sure everything is written outvar myString = writer.GetStringBuilder().ToString();Console.SetOut(originalConsoleOut); // restore Console outputAssert.AreEqual("Hello, C#!\n" , myString);}}- main()
- Test.assertSimilar(rec, "Hello, JS!", "oops~~ ")