JavaScript (abbreviated as JS) is a high-level interpreted programming language that adheres to the ECMAScript standard. This language is also described as dynamic, multi-paradigm, and prototype-based.
Here are some intriguing JavaScript facts:
- JavaScript, along with HTML and CSS, is one of the three fundamental components of the internet (World Wide Web). It enables interactive web pages and is hence a necessary component of online applications. The majority of websites utilize it, and all major web browsers include a JavaScript engine dedicated to executing it.
- JavaScript is a single-threaded language. This is why many people who use multi-threaded programming believe it is sluggish since it does not adequately utilize all of the CPU cores.
- Despite several similarities between JavaScript and Java, such as language names, standard libraries, and grammar, these two languages are unique and differ greatly in design.
- Arrays and objects, like all other programming languages, may be formed using a simple shorthand syntax. These literals constitute the foundation of the JSON data format.
- Regular expressions are supported in JavaScript in a similar way to Perl, which provides a compact and powerful vocabulary for text manipulation that is more advanced than the built-in string methods.
- A “JavaScript hijacking” CSRF attack occurs when a tag on an attacker’s site breaks a page on the victim’s site that provides sensitive information such as JavaScript or JSON. (Source: Wikipedia)
- All current Web browsers with built-in interpreters support JavaScript.