Install jquery on mac
With the development of Web technology, JavaScript has become a very important programming language. In front-end development, we often need to use some JavaScript libraries to simplify development. jQuery is one of the most popular JavaScript libraries. It provides a simple and easy-to-use API that can easily operate DOM and handle events, helping developers build interactive pages faster. This article explains how to install jQuery on Mac.
Preparation
Before installing jQuery, you need to install Node.js first. Node.js is a JavaScript running environment based on the Chrome V8 engine. It allows JavaScript to run on the server. It also provides the npm (Node Package Manager) package management tool to facilitate the installation and management of JavaScript libraries.
There are many ways to install Node.js on Mac. Here is one of them:
- Visit the Node.js official website (https://nodejs.org/), Download the installation package appropriate for your Mac version.
- Open the installation package and follow the prompts to complete the installation.
- Enter the following command in the terminal to check whether Node.js is installed successfully:
node -v
If the version number of Node.js can be output normally, it means the installation is successful.
Install jQuery
Installing Node.js does not mean that jQuery has been installed. jQuery is a pure JavaScript library that needs to be installed through the npm package management tool.
Enter the following command in the terminal to install jQuery:
npm install jquery
If you do not have permission to install globally, you need to add sudo in front of the command:
sudo npm install -g jquery
When the command is executed After that, jQuery has been successfully installed on your Mac.
Testing jQuery
In order to verify whether jQuery is installed correctly, we can create a new HTML file and introduce the jQuery library into it. For convenience, you can first create a new folder on the desktop, name it test, and then create a new index.html file in it. Enter the following code in the index.html file:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Test jQuery</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
$(document).ready(function() {
$("h1").css("color", "red");
});
</script>
</head>
<body>
<h1>Hello, jQuery!</h1>
</body>
</html>Enter the test folder in the terminal and start a local server:
cd ~/Desktop/test python -m SimpleHTTPServer
Visit http://localhost:8000 in the browser /index.html, you can see that a red color style has been added to the H1 tag.
Conclusion
This article explains how to install jQuery on Mac. First you need to install Node.js, then use the npm package management tool to install jQuery, and finally test whether jQuery is installed correctly by creating an HTML file. In addition to the methods introduced in this article, there are some other installation methods that readers can explore on their own. The power of jQuery makes it an indispensable part of web development. I hope this article can provide some help to readers.
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