Window.console in JavaScript

In JavaScript, window.console or console object is under-rated with only console.log() being used most of the time. However, the console object comes with a lot of advanced features.

In this article, we will be discussing the functions available on the console that can be handy at times.

A deeper look into the console

Besides console.log(), there are a lot of other methods also available. You can try looking for the suggestions list in the browser’s console.


console.log() is the most commonly used function in JavaScript to log values. It just logs/prints the value that is passed to the function.

We can also concatenate multiple values using console.log(). Simply call console.log() with multiple parameters and all the values will be concatenated.

You can even pass multiple objects and the browser’s console will show them side by side.

Following are some of the examples of concatenation with console.log:


While console.log() can be used to print an object, we can also use console.table() to pretty print an object in the form of a table.

Just pass the object to print the object in a more readable format.

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Notice, how it prints the values for the nested object.


It is used to print warning messages in the browser’s console.


It is used to print error messages in the console.


This can be used to calculate the time elapsed by our code to execute.

Before starting the execution of any operation, start the timer with console.time(‘TIMER_NAME’) and after the execution of the code, end the timer with console.timeEnd(‘TIMER_NAME’).

As soon as you call the timeEnd function, the elapsed time will get printed in the console.

The timer name should be same for time() and timeEnd()


This command is used to clear the console.

Running the last command resulted in the console being cleared with the following message.

Thank you for reading !

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Window.console in JavaScript



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What is JavaScript - Stackfindover - Blog

Who invented JavaScript, how it works, as we have given information about Programming language in our previous article ( What is PHP ), but today we will talk about what is JavaScript, why JavaScript is used The Answers to all such questions and much other information about JavaScript, you are going to get here today. Hope this information will work for you.

Who invented JavaScript?

JavaScript language was invented by Brendan Eich in 1995. JavaScript is inspired by Java Programming Language. The first name of JavaScript was Mocha which was named by Marc Andreessen, Marc Andreessen is the founder of Netscape and in the same year Mocha was renamed LiveScript, and later in December 1995, it was renamed JavaScript which is still in trend.

What is JavaScript?

JavaScript is a client-side scripting language used with HTML (Hypertext Markup Language). JavaScript is an Interpreted / Oriented language called JS in programming language JavaScript code can be run on any normal web browser. To run the code of JavaScript, we have to enable JavaScript of Web Browser. But some web browsers already have JavaScript enabled.

Today almost all websites are using it as web technology, mind is that there is maximum scope in JavaScript in the coming time, so if you want to become a programmer, then you can be very beneficial to learn JavaScript.

JavaScript Hello World Program

In JavaScript, ‘document.write‘ is used to represent a string on a browser.

<script type="text/javascript">
	document.write("Hello World!");

How to comment JavaScript code?

  • For single line comment in JavaScript we have to use // (double slashes)
  • For multiple line comments we have to use / * – – * /
<script type="text/javascript">

//single line comment

/* document.write("Hello"); */


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Alternative libraries for Console.log() for your next JavaScript Project

If you are a JavaScript developer you must be using console.log() for debugging your JavaScript project. But do you know that there are some alternative libraries to console.log() . These libraries can be used in your next Node, React, Angular, or Vue projects. So let us see what are those libraries and how to use them.

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Niraj Kafle


The essential JavaScript concepts that you should understand

As a JavaScript developer of any level, you need to understand its foundational concepts and some of the new ideas that help us developing code. In this article, we are going to review 16 basic concepts. So without further ado, let’s get to it.

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