Stand in Line nextInLine([5,6,7,8,9], 1) should return 5

JavaScript
1

Tell us what’s happening:

Your code so far


function nextInLine(arr, item) {
  // Your code here
  
  return item;  // Change this line
}

// Test Setup
var testArr = [1,2,3,4,5];

// Display Code
console.log("Before: " + JSON.stringify(testArr));
console.log(nextInLine(testArr, 6)); // Modify this line to test
console.log("After: " + JSON.stringify(testArr));
nextInLine([], 5);
nextInLine([], 1);
nextInLine([2], 1);
nextInLine([5,6,7,8,9], 1);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/stand-in-line/

2

You should show what you’ve done so far.

Try your best buddy!

3

I don’t understand what this problem is trying to do, use it in the above scenario

4

Think about how you would add an element to an array.
And then think about how you will remove the first element from that array.

You should review these challenges:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-push
And
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/manipulate-arrays-with-shift

See if it helps.

1 Like
5

Thank you very much for your help