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JavaScript jQuery Basics Working with jQuery Collections The .each() method

shekhar bhardwaj
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.a{fill-rule:evenodd;}techdegree
shekhar bhardwaj
Full Stack JavaScript Techdegree Student 12,373 Points
Posted by shekhar bhardwaj
.a{fill-rule:evenodd;}techdegree
shekhar bhardwaj
Full Stack JavaScript Techdegree Student 12,373 Points

What am I doing wrong here, jQuery API document also has the same syntax.

$('.favorite-things li').each(function() {
  const $x = $('<input type="checkbox"/>');
  this.prepend($x);
});

$('.favorite-things li').each(function() {
    this.prepend( $('<input type="checkbox"/>'));
});

Can somebody help me understand the issue.

index.html 
<!DOCTYPE html>
<html lang="en">
<head>
    <title>Document</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <h2>My Favorite Things</h2>

    <ul class="favorite-things">
        <li>Kittens</li>
        <li>Rainbows</li>
        <li>Unicorns</li>
        <li>Sprinkles</li>
    </ul>

    <script
    src="jquery-3.2.1.min.js"></script>
    <script src="app.js"></script>
</body>
</html>
app.js 
$('.favorite-things li').each(function() {
  const $x = $('<input type="checkbox"/>');
  this.prepend($x);
});

2 Answers

Clayton Perszyk
MOD
Clayton Perszyk
Treehouse Moderator 48,723 Points
Clayton Perszyk
Clayton Perszyk
Treehouse Moderator 48,723 Points

Hey Shekhar,

This is close:

$('.favorite-things li').each(function() {
    this.prepend( $('<input type="checkbox"/>'));
});

but you need to call the jquery function on this, not on the string you are appending.

Steven Parker
Steven Parker
229,657 Points
Steven Parker
Steven Parker
229,657 Points

You don't have to convert the element text into a jQuery object to use it as an argument, but you can.

The important issue is that "prepend" is a method for a jQuery object, and inside of "each", "this" represents a plain HTML element.

So you need to wrap "this" to make it a jQuery object: :point_right: $(this).