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Max Gabriel
11,213 PointsHow is the shipping variable undeclared?
.
var orderQueue = ['1XT567437','1U7857317','1I9222528'];
var shipping ;
orderQueue.shift();
var shipping = orderQueue.shift([0]);
<!DOCTYPE html>
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<meta charset="utf-8">
<title>JavaScript Loops</title>
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<script src="script.js"></script>
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1 Answer
martinjones1
Front End Web Development Techdegree Graduate 44,819 PointsHi Max,
The steps below will help get to the answer:
1) The shift method always removes the first item in the array, it doesn't take an argument, so no need for the [0].
2) By calling the shift method on the array, you will remove the first item in the array. Then on the last line when you call it again, this time you will be storing the value removed, but it will be the 2nd item in the array.
3) Lastly you only need to declare the shipping var once.
The code below will pass the challenge, hopefully the steps above help explain why this works.
var orderQueue = ['1XT567437','1U7857317','1I9222528'];
var shipping = orderQueue.shift();
The MDN docs have further examples of how this works: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/shift
Just let me know if you have any questions.