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JavaScript vs Python: Which One Is Good for Your Next Application?

The software development industry is constantly evolving, and it is crucial for developers and business leaders to stay up-to-date with the latest trends and technologies. Choosing a technology that has proven popularity, high demand, and a wide range of use cases can greatly improve the chances of success for a project. Additionally, it is important to consider the long-term viability of the technology and its ability to adapt to future changes in the industry.

What is Java Script?

JavaScript is a high-level, object-oriented programming language that is widely used for developing enterprise-level applications, web applications, mobile applications, and more. It has a large developer community, extensive libraries and tools, and runs on multiple platforms. Java is famous for its reliability, safety, and performance.

What is Python?

Python is a general-purpose, high-level programming language known for its simplicity, readability, and ease of use. It supports numerous programming examples such as technical, object-oriented, and practical encoding. It is widely used for web development, scientific computing, data analysis, artificial intelligence, and more.

Side-by-side comparison between JavaScript vs Python


Python is considered to be a beginner-friendly language due to its simple and straightforward syntax, which resembles English. This makes it easier to learn for those with little to no programming experience. Additionally, Python has extensive online documentation and a supportive community, making it easier for programmers to get help when needed.

JavaScript, on the other hand, has a more complex syntax and is considered to be more challenging to learn. It requires a more robust understanding of programming concepts and a more diligent approach to avoid errors. However, it has the advantage of being able to run on any browser, making it a versatile language for web development.

Now you can determine which one you should go for, to make good application.

1. Code Blocks

In Python, the use of indentation for defining code blocks makes the code more readable and easier to understand. This also eliminates the need for explicit delimiters like curly braces, making the code more concise and clean. The use of newlines as statement terminators also helps to keep the code organized and readable.

In JavaScript, code blocks are defined using curly braces, and statements are terminated with semicolons. This syntax is similar to other programming languages like C, Java, and C++. The use of semicolons helps to ensure that statements are executed as intended, but it can also make the code more verbose and harder to read if not used properly.

2. Hash Tables

Python does have built-in support for dictionaries, which are similar to hash tables. Dictionaries allow you to store and retrieve values based on keys, making them a powerful tool for data management.

JavaScript also has similar functionality, known as objects. Objects allow you to store key-value pairs and access values using bracket notation or the dot operator. While objects are not technically hash tables, they serve a similar purpose and can be used in similar ways.

So, both Python and JavaScript have ways to implement hash tables, but the syntax and functionality may differ slightly.

3. Inheritance

Inheritance is a fundamental aspect of object-oriented programming, and both Python and JavaScript support inheritance.

In Python, inheritance is implemented using the class-based model. This means that you can create a new class that inherits properties and methods from an existing class. This allows you to reuse code and create more specialized classes based on a common parent class.

In JavaScript, inheritance is implemented using a prototype-based model. This means that objects inherit properties and methods from a prototype object. Objects can have their own properties and methods, and they can also inherit properties and methods from other objects. The prototype-based inheritance model in JavaScript is considered to be more flexible and dynamic than the class-based model used in Python.

4. Scalability

Scalability is an important consideration for programming languages, as it determines how well a language can handle increasing demands in terms of user traffic and data processing.

JavaScript is designed for scalability and asynchronous programming, which allows it to handle multiple tasks simultaneously. This makes it well-suited for developing large-scale web applications that need to handle a large number of users and data.

Python, on the other hand, is generally considered to be less scalable than JavaScript. While Python has many useful libraries and tools for web development, its synchronous nature can make it less well-suited for handling large amounts of user traffic and data processing. However, Python has been making strides in improving its scalability, and many developers are using Python for developing large-scale applications by leveraging its simplicity, readability, and support for a wide range of libraries.


5. Numeric Types

In Python, you can use various numeric data types such as integers (int), floating-point numbers (float), and complex numbers (complex). This provides greater flexibility and precision when working with numeric data in Python.

In JavaScript, however, there is only one numeric data type: floating-point numbers. This means that all numeric values in JavaScript are represented as floating-point numbers, which can sometimes lead to loss of precision and other issues. However, JavaScript has recently introduced the BigInt data type, which allows you to represent arbitrarily large integers, and this may improve the situation in the future.

6. Implicit conversion

Python is a strongly-typed language, which means that variables in Python have a specific data type and that data type cannot be changed during the lifetime of the variable. When working with strongly-typed languages, you have to explicitly convert data types if needed. This makes the code more predictable and helps to prevent type-related bugs.

On the other hand, JavaScript is a weakly-typed language, which means that variables in JavaScript can change their data type dynamically during the lifetime of the variable. This can sometimes lead to type-related bugs, but it also makes the language more flexible and easier to work with in some situations. In JavaScript, the type of a variable is automatically converted (or “coerced”) in certain circumstances, such as when you perform an operation that involves values of different types.

7. Speed & Performance

Python and JavaScript have their own pros and cons, depending on the use case. JavaScript is better suited for real-time and dynamic web interactions, while Python is good for CPU-intensive tasks and handling large data files. Python has an easy-to-learn syntax, good community support and is best for complex projects. JavaScript is fast, has multithreading capability and is a better choice for web responsiveness. Ultimately, the choice between Python and JavaScript depends on the project requirements and specific needs.

8. Web & Mobile Development

In web development, JavaScript development has an edge due to its asynchronous nature, while Python development is great for the server-side and has a variety of frameworks that simplify the development process. In mobile development, JavaScript is widely used while Python has made advancements in this field but started with limited support. Ultimately, the choice between these two languages depends on the specific project requirements and priorities.


In conclusion, the choice between Python and JavaScript depends on your specific needs and goals. If you want to develop web applications, JavaScript is the best choice, while Python is better suited for data-driven applications such as machine learning, data science, or artificial intelligence. Additionally, it’s important to consider the community, libraries, and tools available for each language as well. Ultimately, the right choice will depend on the problem you’re trying to solve and your personal preferences.

Rushabh Patel

Rushabh Patel is the Founder and CEO of Siddhi InfoSoft, a leading web and mobile app development company focused on creating experiences that connect, perform & inspire. We believe in delivering perfect business solutions by adopting the latest and trending technologies for web and app development projects.

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