JavaScript is a very popular language in the world of web development. It is the most used and most essential programming language when you want to write front-end code. In this blog we will see some JavaScript features that will be very useful for you.
What Is Javascript?
JavaScript is one of the most popular programming languages in the world. For those who don't know what JavaScript is, it's a programming language that allows web developers to provide the user with functionality on a web page. It is used to manipulate anything that appears on the page, such as text, images, or multimedia content.
JavaScript Features
JavaScript features are divided into two groups: generic Javascript features and current Javascript features, which are listed below:
General JavaScript Features
The JavaScript language includes a number of distinguishing features, some of which are given below:
1. Validate The User’s Input
JavaScript is useful when working with forms. It has the potential to check for errors in user input while also saving time.
2. Simple Client-side Calculations
JavaScript can do simple computations in the browser because it is a client-side technology. Every task does not necessitate a request for server time from the browser.
3. Greater Control
JavaScript gives the browser more autonomy, or control, rather than being completely dependent on the web servers.
4. Platform Independent
JavaScript eliminates the compilation and compatibility issues by being interpreted by browsers. As a result, it works on Windows, Macintosh, and other Netscape-compatible operating systems.
Modern JavaScript Features
By looking at some of the more recent advances, we can see how JavaScript differs from other programming languages. There have been a lot of new JavaScript features developed. The following are a few of them, as seen below:
1. Let/Const
To replace the term "var," JavaScript now has the keywords "let" and "const." They're noteworthy because, unlike "var," they have a blocked scope, which means we can only utilise them in the block where they were declared.
2. Arrow Functions
These functions help to simplify the syntax as well as reduce the number of lines of code for a web page or web app.
3. Template Literal
Other programming languages have this feature as well. It's a feature that lets you save variables as strings in a similar way.
4. New Array Functions
Array functions are not essential in any programming language, although they do make life easier for developers. This also makes the code more readable and succinct.
5. Default Parameters
This JavaScript feature prevents the full code from collapsing due to a single error. When a developer has to test the functionality of a function that doesn’t have any parameters, it comes in handy.
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