Use console.log() like a pro
Tags: javascript, webdev, beginners, react
Published: 2022-12-07 12:23:27

As a web developer, you know that using console.log() is an essential tool to help debug code and find out what’s going on in the browser. But did you know that you can use console.log() as a pro to maximize the output of your debugging? In this post, we’ll look at some of the other features of console.log() that you may not have known about, such as custom CSS styles for console.log(), console.assert(), console.clear(), console.count(), console.dir(), [console.group](http://console.group)() and console.groupEnd(), console.memory, console.table(), console.time() and console.timeEnd(), and console.trace(). To begin, let’s take a look at custom CSS styles for console.log(). With this feature, you can customize the look and feel of your console output. For example, you can set the font size, font family, color, background color, and more.

Console.log() is an essential tool for developers as it helps to debug a program and identify errors. With the right knowledge and tools, you can use console.log() like a pro. In this blog, we’ll take a look at some of the tips, tricks, and tools available to make the most out of console.log().

### Custom CSS styles for a console.log()

Customizing the look of your console.log() output can dramatically improve the readability of your code. You can apply CSS styles to your console.log() output by using the console.log() method with a %c argument. To use this feature, you’ll need to specify a string as the first argument and then a CSS string as the second argument.

### console.assert()

![Console Assert](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zzrzc2wd3zoyxu213sqs.png)

The console.assert() statement can be used to test for certain conditions and throw an error message if the condition is not met. This is useful for debugging code as it allows you to quickly identify any errors.

### console.clear()


The console.clear() method can be used to clear the console window. This is useful for decluttering the console window and making it easier to read.

### console.count()

![console-count.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1670415129837/1Gb1SorL9.png align="left")
The console.count() method can be used to count the number of times a given statement has been executed. This can be useful for counting the number of times a certain query or command has been run.

### console.dir()


The console.dir() method can be used to display an object in a more readable form. This is useful for quickly examining an object’s contents.

### [console.group](http://console.group)() and console.groupEnd()

![b](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ty2lvamadf7j7wffn5yt.png)

The [console.group](http://console.group)() and console.groupEnd() methods can be used to group related logs together. This can be useful for making it easier to find certain logs and for organizing the output in the console window.

### console.memory

![Image ription](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/t8vp6p6b4ogrg6jyrdrw.png)

The console.memory object provides information about the memory usage of the current page. This can be useful for diagnosing memory-related issues with your code.

### console.table()

![Image descrtion](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/52byxmqfopzoe3wtgeq1.png)

The console.table() method can be used to display tabular data in a more readable format. This is useful for quickly examining the contents of an array or object.

### console.time() and console.timeEnd()


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/k1x8cz2sfigbl07hd9vw.png)

The console.time() and console.timeEnd() methods can be used to measure the time taken to execute a given block of code. This can be useful for measuring the performance of your code and identifying any areas of improvement.

### console.trace()

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/j2t4sltn006tgg8wow30.png)

The console.trace() method can be used to trace the execution of a given block of code. This can be useful for debugging and understanding the flow of your code.

By taking advantage of these methods and tools, you can use console.log() like a pro. With the right knowledge and tools, you can make console.log() a powerful and versatile debugging tool.