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JavaScript JavaScript Foundations Arrays Methods: Part 1

Posted by markendley
markendley
2,002 Points

Challenge task 1 of 4 - How come my code isn't working?!

I'm on Javascript Foundations, Arrays, Methodfs Part 1 - elements, and I'm doing Challenge task 1 of 4.

They want me to use a method to simultaneously replace the first work with "firstWorld" and remove that "firstWorld". I don't understand why my code isn't working. Help please, it's been an hour.

<script>
var spareWords = ["The","chimney","sweep's","dog"];
var saying = ["quick", "brown", "fox", "jumps", "over", "the", "lazy"];

spareWords[0]="firstWord";
spareWords.shift();

</script>

4 Answers

Dino Paškvan
PLUS
Dino Paškvan
Courses Plus Student 44,108 Points
Dino Paškvan
Dino Paškvan
Courses Plus Student 44,108 Points

The task is asking you to set the variable firstWord to the first item in the array spareWords using a method.

The shift method returns a value, it returns the item that is being removed.

So, in one go you can do something like this:

var someFirstItem = someArray.shift();
Geert-Jan Hendriks
Geert-Jan Hendriks
23,126 Points
Geert-Jan Hendriks
Geert-Jan Hendriks
23,126 Points 
var firstWord = spareWords.shift();
Alexander Smith
Alexander Smith
8,159 Points
Alexander Smith
Alexander Smith
8,159 Points

They are asking you to set the "firstWord" variable to the first word of the "spareWords" Array and remove the first word of the "spareWords" Array at the same time. You are correct in using .shift().

markendley
markendley
2,002 Points
markendley
markendley
2,002 Points

Thanks guys I finally solved it

  • it was much easier than I thought.