Stand in line challange issue

How is var testArr linked to the function nextInLine ?

function nextInLine(arr, item) {
// Only change code below this line

return item;
// Only change code above this line


// Setup
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));

Challenge: Stand in Line

Link to the challenge:

Hi @hibathulla_k !

Welcome to the forum!

The testArr is being used in this function call right here

It’s not really linked to the function but more so used in that function call if that makes sense.

You can use any array in that function call.

It is just that FCC chose that one.

Hope that helps!

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Thanks @jwilkins.oboe ,

How is the number 6 getting added to the array ‘testArr’ when we ad the code arr.push(item) ?

If you look at the function call here

nextInLine(testArr, 6)

The second argument is 6.

This line of code here


is really saying this


You are telling the computer to add 6 at the end of the array.

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Thank you soo much @jwilkins.oboe for your help. It really helped me to clear my confusion and understand the challenge better.

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