console.log is a function in JavaScript that is used to print or display output in the console. It allows you to see the values of variables, debug your code, and track the flow of your program.

Here is an example of how console.log can be used:

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let greeting = "Hello";
console.log(greeting); // Output: Hello

In this example, console.log is used to display the value of the greeting variable in the console.

The console is a tool used in programming to display messages or errors. You can use it to test your code, debug errors and more.

In JavaScript, you can access the console object and its methods by opening the browser console or using the console.log() method in your code, like this:

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console.log("Hello, World!");

This would display "Hello, World!" in the console of your browser.

Here's a useful link to learn more about the console object and how to use it: https://developer.mozilla.org/en-US/docs/Web/API/Console

Without additional context, I'm not sure which programming language or platform you are referring to. In general, glitches when hovering can be caused by a variety of issues such as incorrect CSS, conflicting styles, or a lack of compatibility with certain browsers. It's best to review your code, debug any errors, and test your website or application on different browsers to identify the root cause of the problem. If you have specific code you'd like me to review or additional details, please let me know.

There are five basic steps to coding that everyone should know:

1. Understand the problem: Evaluate the problem, determine the inputs and outcomes, and clearly define the scope.
2. Design an algorithm: Break the problem into smaller tasks, plan the structure of the code, and create a step-by-step plan to solve the problem.
3. Implement the algorithm: Write the code out in a programming language.
4. Test your code: Apply different inputs to the code and make sure it produces the correct outputs.
5. Debug: Find and remove any errors in the code.

For more detailed tutorials on how to code, please refer to code-specific tutorials for your language of choice, such as JavaScript tutorials.

Common node.js interview questions include:

• What is Node.js used for?
• What is the difference between Node.js and JavaScript?
• What is asynchronous programming?
• What are the pros and cons of using an asynchronous programming paradigm?
• What is an event loop?
• What libraries and frameworks have you used in your projects?
• How do you debug a Node.js application?
• How do you unit test a Node.js application?
• How would you secure a Node.js application?
• Describe the most complex project you’ve built with Node.js.
• How do streams work in Node.js?
• What is the responsibility of the incubator in the Node.js process?
• What is callback hell and how can it be avoided?
• What do you need to keep in mind when scaling a Node.js application?

See this Stack Overflow answer for an in-depth look into Node.js interview questions.

JS debugging is the process of identifying and fixing errors in JavaScript code. JavaScript debugging involves writing organized code, logging messages and using debugging tools to find and fix errors quickly. Code written in an organized, easy-to-debug style makes it easier to identify, locate and correct errors. Logging messages to the console and using debugging tools such as browser developer tools can be very helpful in the debugging process.

A function is a self-contained block of code that performs a specific task. In programming, functions allow you to easily reuse code instead of rewriting the same code multiple times.

For example, in Python a function could be defined like this:

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def my_function():
    print("Hello World")

my_function()

When my_function() is called, it will print "Hello World" to the terminal. Functions make programming more efficient as they can be reused as needed and make code easier to reason about and debug. More info here.