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JavaScript Introduction to jQuery Events Event Types

Andrei Olar
Andrei Olar
20,827 Points
Posted by Andrei Olar
Andrei Olar
20,827 Points

Rewrite JS using arrow function

Hello,

We have the following JS in this tutorial:

$(".loc").hover(
    function(){
      $(this).html("<strong>Location:</strong> Your house?!");
    },
    function(){
      $(this).html("<strong>Location:</strong> Treehouse Adoption Center");
    }
);

How should I rewrite this to make use of the arrow function? I've tried like this but it did not worked:

$(".loc").hover(
    () => {
        $(this).html("<strong>Location:</strong> Your house?!");
    },
    () => {
        $(this).html("<strong>Location:</strong> Treehouse Adoption Center");
    }
);

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

Arrow functions don't bind "this".

But you could explicitly use the event object to obtain the target:

$(".loc").hover(
    (e) => {
        $(e.target).html("<strong>Location:</strong> Your house?!");
    },
    (e) => {
        $(e.target).html("<strong>Location:</strong> Treehouse Adoption Center");
    }
);

See the Arrow Functions page on MDN for more info about how arrow functions differ from ordinary functions.