3. Event Handling
5. Case Sensitive
6. Functional Programming
7. Platform Independent
8. Async Processing
9. Client-Side Validations
Users can easily submit valid data to the server with a client-side validation feature during the form submission.
1. Client-side Security
2. Inconsistent Browser Support
3. Inefficient Debugging Support
What is WebAssembly?
WebAssembly was launched in 2017 and is an assembly-like programming language that has been in trend since then. It runs on the web natively and is a low-level bytecode. It supports all the browsers, such as Chrome, Edge, Safari, Opera, and others.
The main aim behind developing WebAssembly was to execute modern apps on browsers with the best performance possible without compromising compatibility and security.
WebAssembly allows to be compiled and run codes written in other programming languages on the web. However, the widespread adoption of WebAssembly needs to be more profound. A recent survey revealed that only 10% of developers have used the language recently.
Features of WebAssembly
1. Garbage Collection Primitives
If a programming language uses garbage-collected memory models, WebAssembly does not support it directly. For example, WebAssembly can support Python or Lua only if it has some features restricted. However, WebAssembly developers are working to resolve this issue to support all languages regardless of whether they use garbage-collected memory models.
Though more programming languages support threading, WebAssembly does not support it. It means you cannot write WebAssembly-targeted software in languages like C++ and Rust.
3. Bulk Memory Operations and SIMD
High-end web-based applications that work with data must-have features such as Bulk Memory Operations and SIMD, as these apps give a heavy load to native CPUs. WebAssembly developers are working on this issue. We can hear about it soon.
Pros and Cons of WebAssembly
Pons of WebAssembly
1. Fast Performance
As discussed earlier, the main aim of developing WebAssembly was to achieve optimal performance. This is the most significant benefit of WebAssembly. As WebAssembly is statically typed, code optimization occurs early in the compilation process before the code reaches the browser. It improves the speed and performance to a great extent.
2. Cross-Platform Support
3. High-end Security
WebAssembly was meant to be highly secured. WebAssembly developers kept this thing in mind while developing it. It allows developers to build highly secure apps that are difficult to break or attack. WebAssembly isolates module execution in a sandboxed environment and enforces browser security policies.
Cons of WebAssembly
1. Early Stage
2. Language Complexity
WebAssembly is a low-level language that is difficult to learn and has a long learning curve. This is the reason it is less popular among developers.
3. Imperfect Security
Yes, we have discussed security as an advantage in the previous section, but many improvements are still needed in WebAssembly.
For example, a recent study revealed that 50% of WebAssembly websites have security concerns. As WebAssembly is compiled code, it is challenging for the browser to detect security vulnerabilities in the obfuscated format.
Used cases of WebAssembly
You can use WebAssembly in the web app projects, such as
- When you want to develop hybrid-platform apps
- You can use WebAssembly in CPU-intensive games
- In high-performing scientific simulations
- Image caching applications
- Apps that encrypt highly sensitive data
2. Loading Time
3. Execution Speed
4. Garbage Collection
WebAssembly does not support garbage collection and depends on JS for it.
5. Memory Usage
In WebAssembly, developers have to manage linear memory allocations manually.
6. Platform API Access
In WebAssembly, debugging happens before compilation. If there are errors in the code, compilation will not occur.
WebAssembly does not support multithreading. You need to use other low-level programming languages for this purpose.
On the other hand, WebAssembly supports portability. Developers can use portability in and outside browser platforms.
The answer depends on project requirements, scalability goals, and other factors.
When to use WebAssembly?
You can use WebAssembly for the below applications
- When you want to develop an app that handles sensitive data.
- When you want a hybrid platform app.
- When you want to develop video rendering or streaming and music streaming apps.
- When you want to build CPU-intensive games.
- When you want to create high-end, high-performance scientific simulation apps.
- When you want to develop embedded systems.
- When you want to develop a desktop or mobile app.
- When you want to build UI for web apps.
- When you want to create server-side apps with Node.JS.
- When you want to make web servers.