What is the difference between javascript and java
What is Java?
Java is an object-oriented programming language. It not only absorbs various advantages of C++ language, but also abandons concepts such as multiple inheritance and pointers that are difficult to understand in C++. Therefore, Java language has two characteristics: powerful and easy to use.
As a representative of the static object-oriented programming language, the Java language perfectly implements the object-oriented theory and allows programmers to perform complex programming in an elegant way of thinking.
Java has characteristics such as simplicity, object-oriented, distributed, robustness, security, platform independence and portability, multithreading, and dynamics. Java can write desktop applications, Web applications, distributed systems and embedded system applications, etc.
What is JavaScript?
JavaScript is a literal scripting language that is a dynamically typed, weakly typed, prototype-based language with built-in support for types. Its interpreter is called the JavaScript engine, which is part of the browser and is widely used as a client-side scripting language. It was first used on HTML (an application under the standard general markup language) webpage to add dynamic functions to HTML webpages. .
JavaScript is a scripting language belonging to the network. It has been widely used in the development of web applications. It is often used to add various dynamic functions to web pages to provide users with smoother and more beautiful browsing effects. Usually, JavaScript scripts realize their own functions by embedding them in HTML.
What is the difference between JavaScript and java?
JavaScript (JS) is not similar or related to Java. Both languages have a C-like syntax and are widely used in client-side web applications, but bear little resemblance. Let's take a look at the differences between them:
1. Strongly typed language and weakly typed language
Java is a strongly typed language, and variables must be declared in the program before using them; in Java, the type of the variable is checked at compile time. However, JavaScript is a weakly typed language with more relaxed syntax and rules.
2. Different positioning
Java is a completely object-oriented OOP programming language. If we want to use Java to write something, we must first design the object; JavaScript is different, it is an object-based OOP scripting language, which provides developers with built-in Many internal objects of , to be more simple and time-saving.
3. Different linking methods
Java uses static binding and is a statically typed language. Java object references must be made at compile time, and the compiler needs to implement strong type checking.
Unlike JavaScript, it uses dynamic binding and is a dynamically typed language whose object references can be checked at runtime.
4. Different concurrency methods
Java has a thread based approach to concurrency. Whereas, Javascript has an event-based approach to concurrency.
Which is more difficult, javascript or python
It's no coincidence that Python is one of the most popular programming languages for first-time programmers. Python is a general-purpose programming language. This means it can be applied to a wide range of programming tasks. There's almost nothing you can't do with Python. This allows many novices to apply this programming language in practice. Additionally, Python has two important design features that make it more beginner-friendly: a clear, English-like syntax, and an emphasis on code readability.
Essentially, the syntax of a programming language is what you type to make the programming language execute. This includes words, special characters (such as ;, $, %, or {}, spaces, or any combination of the above. Python uses English as much as possible, and does not use punctuation or special characters as often as other programming languages. Therefore, Python reads It sounds more natural and more like a human language. This helps new programmers to focus on solving problems and spend less time entangled in the characteristics of the language itself.
JavaScript
If you know your main reason for learning to program is to build websites, JavaScript might be the best choice for you. JavaScript is a programming language for web pages. Besides being the default programming language for the web, JavaScript has several advantages as a language for beginners.
First, you don't have to install anything. You can open a text editor (such as Notepad on Windows, but not a word processor, such as Microsoft Word) and start typing JavaScript. The code will run in your browser. Most top browsers have JavaScript engines built in, so your code will run on almost all computers and many mobile devices. In fact, being able to run code right away in the browser provides a very quick feedback for programmers, which is great for beginners. You can try things and see results quickly.
JavaScript started as a front-end language, but an environment called Node.js lets you write code that runs in the browser or on the server. JavaScript can now be used as a front-end or back-end language. This increases its number of users. JavaScript also has a large number of packages that provide additional functionality beyond the core functionality, making it useful as a general-purpose language. JavaScript is not just a web development language, like Python, it also has a vibrant and active ecosystem.
Despite these advantages, JavaScript is not perfect for beginners. JavaScript's syntax is not as clear as Python's, nor is it nearly as English-like. More like the C language mentioned in the previous example. It doesn't treat readability as a primary design feature.
Summarize
There is no problem in choosing Python or JavaScript as the entry language. The key is what you intend to do. Why should you learn programming? Your answers greatly influence your decision. If you're looking to contribute to open source, you'll find plenty of projects written in both languages. Also, many projects that are not primarily written in JavaScript still use JavaScript for front-end components. When making a decision, don't forget your local community. Do you have friends or colleagues who speak one of these languages? For a novice, it is very important to have real-time help.
Knowledge point expansion:
JavaScript and Python are two very influential programming languages, both of which are the mainstream languages we will use when building cross-platform applications. In the past few years, although JavaScript has always occupied the most dominant position, the recent soaring popularity of Python seems to have made it unable to compete with JavaScript.
Melight is a programmer with ten years of software development experience, and now he is starting to pass on his experience and skills to people. Melight also has his own opinion on the "c position battle" between JavaScript and Python: "From the perspective of recent technological development trends, JavaScript and Python should be neck and neck in popularity, but the latter should not be in the future." Win the favor of more programmers."
So, will Python really overtake JavaScript in the next five years? In this article, we will not analyze data and models for you. But before I start the text, I must also emphasize that the main purpose of this article is not to compare JavaScript and Python which is the worst programming language. The two have completely different application scenarios, so they must not be substituted for each other.
So far, this article about python and JavaScript, which is easier to use, is introduced here. For more information about python and JavaScript, which is more difficult, please search the previous articles or continue to browse the following related articles. I hope you will support me in the future!