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Apr 5, 2022 · This article explains the difference between console, terminal, command line, and shell, and why you should use the terminal for your daily tasks. It also covers the most common and useful commands, how to customize your shell, and how to write scripts.
Aug 12, 2024 · Learn how to use console commands in web browsers for debugging, logging, and styling purposes. Compare the differences and features of console commands in Firefox and Chrome.
- What Is A Console Object
- Javascript Console Methods
- Javascript console.log() Method
- Javascript console.error() Method
- Javascript console.warn() Method
- Javascript Console.Clear() Method
- Javascript console.time() and Console.Timeend() Method
- Javascript Console.Table() Method
- Javascript console.count() Method
- Javascript console.group() and Console.Groupend() Method
In JavaScript, the console object provides access to the browser debugging console. Opening the console in a web browser can be done usingCtrl + Shift + Ifor Windows andCommand + Option + Kfor Mac.
The console object provides us with several different methods. Let’s look at all these methods one by one.
JavaScript console.log() Methodis used to log(print) the output to the console. We can put any type inside the log(), be it a string, array, object, boolean etc. Example: Output:
JavaScript console.error() Methodis used to log an error message to the console. Useful in testing of code. By default the error message will be highlighted with red color. Example: Output:
JavaScript console.warn() Methodis used to log warning message to the console. By default, the warning message will be highlighted with yellow color. Example: Output:
JavaScript console.clear() Methodis used to clear the console. The console will be cleared, in case of Chrome a simple overlayed text will be printed like : ‘Console was cleared’ while in Firefox no message is returned. Example: Output:
Whenever we want to know the amount of time spend by a block or a function, we can make use of the time() and timeEnd() methods provided by the JavaScript console object. They take a label which must be same, and the code inside can be anything( function, object, simple console). Example: Output: We can see that the label is ‘abc’ which is the same...
JavaScript console.table() Methodallows us to generate a table inside a console. The input must be an array or an object which will be shown as a table. Example: Output:
JavaScript console.count() Methodis used to count the number that the function hit by this counting method. Output:
JavaScript group()and groupEnd()methods of the console object allows us to group contents in a separate block, which will be indented. Just like the time() and the timeEnd() they also accepts label, again of same value. Example: Output:
Sep 27, 2022 · The Command Line Interface (CLI) is an editing environment that is text-based. It uses specified text (known as commands) to interact with the computer and perform numerous operations, including installing and working with programs. Every operating system comes with an inbuilt command prompt.
Terminal Tutor is an online tool that teaches you how to use the terminal, also known as command line or console. You can try commands in a standalone terminal and learn how to use them for coding, Git, Docker and more.
Aug 7, 2024 · Simple commands do not carry too much danger, but as you start putting together more complex commands, you need to think carefully about what the command will do, and try testing them out first before you finally run them in the intended directory.
Nov 29, 2023 · Learn how to use the console object to log, format, and debug your JavaScript code in the browser. Explore various methods such as console.log(), console.table(), console.count(), and more with examples.
