Javascript vs C: 7 Key Differences Between Them

Author: Stat Analytica

JavaScript is the most widely used programming language, according to a Stack Overflow study. The survey found that around one in five developers still uses C, a language that is 50 years old. This article explains the distinctions between C and JavaScript as well as the continued use of C.

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Without further a let first know about C & Javascript language, and then we further move to their differences.

What is JavaScript?

Every time a web page does more than simply sit there and display static information for you to look at — displaying timely content updates, interactive maps, animated 2D/3D graphics, scrolling video jukeboxes, etc. — you can bet that JavaScript is probably involved.

JavaScript is a scripting or programming language that enables you to implement complex features on web pages. It is the third tier of the layer cake made up of common web technologies, the first two (HTML and CSS), which we have already examined in great detail in other sections of the Learning Area.

Javascript Features:

  • Light Weight Scripting language.

  • Dynamic Typing.

  • Object-oriented programming support.

  • Functional Style.

  • Platform Independent.

  • Prototype-based.

  • Interpreted Language.

  • Async Processing.

What is C?

Computer programming is done in C. In other words, you may write lists of instructions for a computer to follow in C. C is one of the countless programming languages used today. Because it allows programmers the most flexibility and efficiency, the programming language C has been around for many years and has gained considerable adoption. Learning the language C is simple. Although it has a slightly more cryptic style than some other languages, you get used to it quickly.

Features of C Programming language :

  • Simple.

  • Machine Independent or Portable.

  • Mid-level programming language.

  • Structured programming language.

  • Rich Library.

  • Memory Management.

  • Fast Speed.

  • Pointers.

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7 Key Differences Between JavaScript vs C

  • C is already compiled. A just-in-time (JIT) compiler interprets and occasionally compiles JavaScript while it is being used.

  • C has static typing. JavaScript utilizes dynamic typing.

  • Blocks of memory must be allocated and released by programmers when using C. This is handled automatically by JavaScript.

  • If C code is transferred to a new processor, it must be recompiled. JavaScript is not necessary.

  • Through pointers, C is made to interact directly with the computer's memory. JavaScript conceals this ability.

  • C is frequently used for operating systems and other high-performance embedded computing applications. Initially only seen in web pages, JavaScript is now playing a new role in server applications created using Node.js.

  • JavaScript promotes multitasking by breaking down tasks into asynchronous functions run when data is ready, whereas C provides explicit thread management.

System type

Since C is a static-typed language, compile-time knowledge of variable types is possible. Each has a format specifier, so you must keep track of them and declare them before using them. It could seem difficult if you are new to coding. Additionally, if you want to save a variable's value in a different format, you must establish a new variable.

However, because JavaScript is a dynamically typed language, type verification takes place while the program runs. Additionally, because it uses weak typing, the type of a variable can vary depending on how you use it in the source code. As you don't need to know variable types or declare them like in C, it seems convenient for a beginning.

Applications:

With web frameworks like React and Express, websites and apps are developed using JavaScript. It can also be used by programmers to create games and artificial intelligence. JavaScript is a prototype-based language, making it simple for programmers to maintain and update their creations. Facebook, Instagram, Discord, Pinterest, Wix, and Walmart are a few examples of apps created in JavaScript (React Native).

Contrary to the popular use of JavaScript, C is now mostly used by developers to create embedded systems, drivers, kernels, and libraries. Stability is the primary need in such domains, and C is quite fast despite not supporting object-oriented programming. The Linux kernel, which is composed almost entirely of C code, serves as an example of this. The fact that roughly one-third of the common Python libraries are C implementations is another intriguing illustration.

Conclusion:

JavaScript can be used as both a procedural and an object-oriented language, in contrast to C, a procedural programming language. If you only consider one feature, you might believe JavaScript can completely replace C. But it can't since JavaScript is an interpreted language while C is a compiled language, and compiled languages are typically quicker because they are compiled to native machine code.