Step 1: Open a Text Editor
The first step is to open your preferred text editor. In this article, we will be using Visual Studio Code.
Step 2: Create a New File
To create a new file in Visual Studio Code, click on "File" in the top menu and select "New File." Alternatively, you can use the keyboard shortcut "Ctrl+N" (Windows) or "Cmd+N" (Mac).
Step 3: Save the File
Once you have created a new file, the next step is to save it. Click on "File" in the top menu and select "Save As." Alternatively, you can use the keyboard shortcut "Ctrl+S" (Windows) or "Cmd+S" (Mac).
When you save the file, make sure to give it a name and add the .js extension at the end. For example, if you want to create a file called "app.js," you would save it as "app.js".
This program will print "Hello World!" to the console when executed.
Step 5: Link the File to an HTML Page
<!DOCTYPE html> <html> <head> <title>My Web Page</title> </head> <body> <h1>Welcome to my web page!</h1> <script src="app.js"></script> </body> </html>
In this example, we have linked our "app.js" file to the HTML page using the script tag.
- Use a consistent naming convention
- Organize your code
- Use modules
- Use meaningful variable and function names
When naming your variables and functions, it is important to use meaningful names that accurately describe what they do. This makes your code easier to read and understand, especially when someone else is reviewing your code.
- Minimize global variables
Global variables can cause issues with your code, as they can be accessed from anywhere in your program. It is best to minimize the use of global variables and instead use local variables whenever possible.
- Use strict mode
- Use comments