Your code contains global variables that are changed each time the function is run. This means that after each test completes, subsequent tests start with the previous value. To fix this, make sure your function doesn’t change any global variables, and declare/assign variables within the function if they need to be changed.
Example:
var myGlobal = [1];
function returnGlobal(arg) {
myGlobal.push(arg);
return myGlobal;
} // unreliable - array gets longer each time the function is run
function returnLocal(arg) {
var myLocal = [1];
myLocal.push(arg);
return myLocal;
} // reliable - always returns an array of length 2
I think I get it. But then why when I use the same global variable technique on the next recursion problem, all the tests are cleared seamlessly? Next problem link
let arr=[];
function rangeOfNumbers(startNum, endNum) {
arr.push(startNum);
if(startNum<endNum)
rangeOfNumbers(startNum+1,endNum);
return arr;
};