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JavaScript JavaScript Foundations Arrays Methods: Part 2

Posted by Dewi Tjin
Dewi Tjin
2,275 Points

Creating sort function

The error message is that task 1 is not being passed... and I'm not doing anything with saying1

<script>
      var saying1 = ["The", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog"];
      var saying2 = ["The", "quick", "brown", "fox", "jumped", "over", "the", "lazy", "dog's", "back"];
      saying1.reverse();
      saying2.sort(function(saying2.length, b){
       return saying2.length - b;
      });

3 Answers

Rasmus Fløe
Rasmus Fløe
Courses Plus Student 3,114 Points

You cannot access variables in function parameters like saying2.length - only define parameter names.

If what you want is to sort by length you probably want something like:

saying2.sort(function(a, b){
       return a.length - b.length;
});

...but it won't be sorted alphabetically ;)

Dewi Tjin
Dewi Tjin
2,275 Points
Dewi Tjin
Dewi Tjin
2,275 Points

How come I've seen some function with strings inside like

function("string",b){...};

What would they just be normal parameter names?

Rasmus Fløe
PLUS
Rasmus Fløe
Courses Plus Student 3,114 Points
Rasmus Fløe
Rasmus Fløe
Courses Plus Student 3,114 Points

That wouldn't be working javascript :D