Question
How can we add the jQuery library to our web pages? Add a script to the body of the webpage that includes a link to the jQuery source. Add a script to the head of the webpage that includes a link to the jQuery source. Add the $() selector tag to your scripts. Paste the jQuery page source directly into the webpage body.
Answers
GPT-4o mini
To include the jQuery library in your web pages, you can either link to a hosted version of jQuery from a Content Delivery Network (CDN) or you can download and serve it locally. Below, I will show you how to include jQuery in both the `<head>` and `<body>` of a webpage.
### Including jQuery in the Head
You can include the jQuery library in the `<head>` section of your HTML document using a `<script>` tag with a source pointing to the CDN. Here’s how you can do it:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Web Page</title>
<!-- jQuery included in the head -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<h1>Hello, World!</h1>
<div id="content">Click the button to change my text!</div>
<button id="myButton">Change Text</button>
<!-- jQuery code -->
<script>
$(document).ready(function() {
$('#myButton').click(function() {
$('#content').text('The text has been changed!');
});
});
</script>
<!-- jQuery included in the body -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<!-- jQuery code again -->
<script>
$(document).ready(function() {
console.log('jQuery Loaded!');
});
</script>
</body>
</html>
```
### Including jQuery in the Body
Alternatively, you can include jQuery in the `<body>` section. This is often done before your custom scripts. Here’s an example:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Web Page</title>
</head>
<body>
<h1>Hello, World!</h1>
<div id="content">Click the button to change my text!</div>
<button id="myButton">Change Text</button>
<!-- jQuery included in the body -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<!-- jQuery code -->
<script>
$(document).ready(function() {
$('#myButton').click(function() {
$('#content').text('The text has been changed!');
});
});
</script>
</body>
</html>
```
### Adding jQuery Directly to the Webpage Body
To paste the actual jQuery source code directly into your webpage body, you can copy the minified version of jQuery and paste it inside a `<script>` tag. However, it is not recommended to include large libraries directly in your HTML like this because it makes your HTML file very large and can lead to performance issues. Here's how you could do that:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Web Page</title>
</head>
<body>
<h1>Hello, World!</h1>
<div id="content">Click the button to change my text!</div>
<button id="myButton">Change Text</button>
<!-- Paste actual jQuery code here, for demonstration only. -->
<script>
// This is just an example placeholder. Copy the minified jQuery code here.
// Example:
/*! jQuery v3.6.0 | (c) JS Foundation and other contributors | jquery.org/license */
(function(window, undefined) {
// jQuery code goes here...
})(window);
</script>
<script>
$(document).ready(function() {
$('#myButton').click(function() {
$('#content').text('The text has been changed!');
});
});
</script>
</body>
</html>
```
### Note:
When you include jQuery in both the head and body, it should only be done once, ideally in the `<head>` or right before your custom scripts in the `<body>`. Including it multiple times is unnecessary and may cause issues.
### Including jQuery in the Head
You can include the jQuery library in the `<head>` section of your HTML document using a `<script>` tag with a source pointing to the CDN. Here’s how you can do it:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Web Page</title>
<!-- jQuery included in the head -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
<h1>Hello, World!</h1>
<div id="content">Click the button to change my text!</div>
<button id="myButton">Change Text</button>
<!-- jQuery code -->
<script>
$(document).ready(function() {
$('#myButton').click(function() {
$('#content').text('The text has been changed!');
});
});
</script>
<!-- jQuery included in the body -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<!-- jQuery code again -->
<script>
$(document).ready(function() {
console.log('jQuery Loaded!');
});
</script>
</body>
</html>
```
### Including jQuery in the Body
Alternatively, you can include jQuery in the `<body>` section. This is often done before your custom scripts. Here’s an example:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Web Page</title>
</head>
<body>
<h1>Hello, World!</h1>
<div id="content">Click the button to change my text!</div>
<button id="myButton">Change Text</button>
<!-- jQuery included in the body -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<!-- jQuery code -->
<script>
$(document).ready(function() {
$('#myButton').click(function() {
$('#content').text('The text has been changed!');
});
});
</script>
</body>
</html>
```
### Adding jQuery Directly to the Webpage Body
To paste the actual jQuery source code directly into your webpage body, you can copy the minified version of jQuery and paste it inside a `<script>` tag. However, it is not recommended to include large libraries directly in your HTML like this because it makes your HTML file very large and can lead to performance issues. Here's how you could do that:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Web Page</title>
</head>
<body>
<h1>Hello, World!</h1>
<div id="content">Click the button to change my text!</div>
<button id="myButton">Change Text</button>
<!-- Paste actual jQuery code here, for demonstration only. -->
<script>
// This is just an example placeholder. Copy the minified jQuery code here.
// Example:
/*! jQuery v3.6.0 | (c) JS Foundation and other contributors | jquery.org/license */
(function(window, undefined) {
// jQuery code goes here...
})(window);
</script>
<script>
$(document).ready(function() {
$('#myButton').click(function() {
$('#content').text('The text has been changed!');
});
});
</script>
</body>
</html>
```
### Note:
When you include jQuery in both the head and body, it should only be done once, ideally in the `<head>` or right before your custom scripts in the `<body>`. Including it multiple times is unnecessary and may cause issues.