Tell us what’s happening:
Describe your issue in detail here.
**Your code so far**
function nextInLine(arr, item) {
// Only change code below this line
//I'm trying to push an item to this array here but It show error "TypeError: Cannot read properties of undefined (reading 'push')"
arr.push(item);
var removed = arr.shift();
return removed;
// Only change code above this line
}
// Setup
nextInLine([], 5);
nextInLine([], 1);
nextInLine([2], 1);
nextInLine([5,6,7,8,9], 1);
nextInLine(testArr, 10);
var testArr = [1,2,3,4,5];
// Display code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine(testArr, 6));
console.log("After: " + JSON.stringify(testArr));
**Your browser information:**
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Challenge: Stand in Line
Link to the challenge: