JavaScript vs C++ vs WebAssembly: Speed, Speed, Speed

In Node.js, we can use WebAssembly modules and native C++ addons. If your app has performance critical parts, should you stay in JavaScript? Or write a native C++ addon? Or use WebAssembly? Let’s have a look at how these options compare performance wise and which one is best for different workloads. So the next time you need to optimize for speed, you know your options.

What’s happening under the hood at the compiler level in JavaScript? In this keynote session, Franziska Hinkelmann talks about JavaScript compilers specifically and see how modern JS performance compares to C++ performance. Then, see where WebAssembly fits into this performance story. The concepts that Franziska Hinkelmann will show you are fundamental JS concepts and they apply no matter what framework you are using – so doesn’t matter if you are using Angular, Node.js or anything else.

Moreover, as we go through this journey, the questions like how can dynamically typed JS be so fast, when it became faster than before will be answered as well.

Franziska Hinkelmann spoke at CovalenceConf 2019 about how JavaScript stacks up against C++ and WebAssembly, what kind of code is actually fast, and the performance considerations one should account for when building apps with web technologies.

#javascript #c++ #webassembly

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JavaScript vs C++ vs WebAssembly: Speed, Speed, Speed

Sean Robertson

1548772126

Small test like that are terrible. Everything fits within the cache so sure JS will perform ok. If you would have a big program you would have way more freedom in how memory is layed out etc. Avoiding or minimizing cache misses and keeping real good performance. The gap between c++ and JS would become way bigger then. But all that aside, great to see JS improving.

Joseph Norton

1548772249

Excellent talk and very informative content! Thank you

Nina Diana

Nina Diana

1562839024

JavaScript vs C++ vs WebAssembly: Speed, Speed, Speed

In Node.js, we can use WebAssembly modules and native C++ addons. If your app has performance critical parts, should you stay in JavaScript? Or write a native C++ addon? Or use WebAssembly? Let’s have a look at how these options compare performance wise and which one is best for different workloads. So the next time you need to optimize for speed, you know your options.

What’s happening under the hood at the compiler level in JavaScript? In this keynote session, Franziska Hinkelmann talks about JavaScript compilers specifically and see how modern JS performance compares to C++ performance. Then, see where WebAssembly fits into this performance story. The concepts that Franziska Hinkelmann will show you are fundamental JS concepts and they apply no matter what framework you are using – so doesn’t matter if you are using Angular, Node.js or anything else.

Moreover, as we go through this journey, the questions like how can dynamically typed JS be so fast, when it became faster than before will be answered as well.

Franziska Hinkelmann spoke at CovalenceConf 2019 about how JavaScript stacks up against C++ and WebAssembly, what kind of code is actually fast, and the performance considerations one should account for when building apps with web technologies.

#javascript #webassembly #c++ #web-development

JavaScript vs C++ vs WebAssembly: Speed, Speed, Speed

In Node.js, we can use WebAssembly modules and native C++ addons. If your app has performance critical parts, should you stay in JavaScript? Or write a native C++ addon? Or use WebAssembly? Let’s have a look at how these options compare performance wise and which one is best for different workloads. So the next time you need to optimize for speed, you know your options.

What’s happening under the hood at the compiler level in JavaScript? In this keynote session, Franziska Hinkelmann talks about JavaScript compilers specifically and see how modern JS performance compares to C++ performance. Then, see where WebAssembly fits into this performance story. The concepts that Franziska Hinkelmann will show you are fundamental JS concepts and they apply no matter what framework you are using – so doesn’t matter if you are using Angular, Node.js or anything else.

Moreover, as we go through this journey, the questions like how can dynamically typed JS be so fast, when it became faster than before will be answered as well.

Franziska Hinkelmann spoke at CovalenceConf 2019 about how JavaScript stacks up against C++ and WebAssembly, what kind of code is actually fast, and the performance considerations one should account for when building apps with web technologies.

#javascript #c++ #webassembly

Webassembly for C, Rust, Go, and C#

A 45 minute video presentation that walks through the history of WebAssembly starting with asm.js then demonstrates examples of apps using C, Go, Rust, and C# Blazor.
In this presentation I reviewed:

  • asm.js
  • WebAssembly
  • Building WebAssembly with C using Emscripten
  • How WebAssembly manages memory
  • Creating WebAssembly apps with Go
  • Compiling Rust to WebAssembly
  • Building fullstack apps in C# using Blazor WebAssembly

#c #c# #c++ #programming-c

Tamale  Moses

Tamale Moses

1624240146

How to Run C/C++ in Sublime Text?

C and C++ are the most powerful programming language in the world. Most of the super fast and complex libraries and algorithms are written in C or C++. Most powerful Kernel programs are also written in C. So, there is no way to skip it.

In programming competitions, most programmers prefer to write code in C or C++. Tourist is considered the worlds top programming contestant of all ages who write code in C++.

During programming competitions, programmers prefer to use a lightweight editor to focus on coding and algorithm designing. VimSublime Text, and Notepad++ are the most common editors for us. Apart from the competition, many software developers and professionals love to use Sublime Text just because of its flexibility.

I have discussed the steps we need to complete in this blog post before running a C/C++ code in Sublime Text. We will take the inputs from an input file and print outputs to an output file without using freopen file related functions in C/C++.

#cpp #c #c-programming #sublimetext #c++ #c/c++

Dicey Issues in C/C++

If you are familiar with C/C++then you must have come across some unusual things and if you haven’t, then you are about to. The below codes are checked twice before adding, so feel free to share this article with your friends. The following displays some of the issues:

  1. Using multiple variables in the print function
  2. Comparing Signed integer with unsigned integer
  3. Putting a semicolon at the end of the loop statement
  4. C preprocessor doesn’t need a semicolon
  5. Size of the string matters
  6. Macros and equations aren’t good friends
  7. Never compare Floating data type with double data type
  8. Arrays have a boundary
  9. Character constants are different from string literals
  10. Difference between single(=) and double(==) equal signs.

The below code generates no error since a print function can take any number of inputs but creates a mismatch with the variables. The print function is used to display characters, strings, integers, float, octal, and hexadecimal values onto the output screen. The format specifier is used to display the value of a variable.

  1. %d indicates Integer Format Specifier
  2. %f indicates Float Format Specifier
  3. %c indicates Character Format Specifier
  4. %s indicates String Format Specifier
  5. %u indicates Unsigned Integer Format Specifier
  6. %ld indicates Long Int Format Specifier

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A signed integer is a 32-bit datum that encodes an integer in the range [-2147483648 to 2147483647]. An unsigned integer is a 32-bit datum that encodes a non-negative integer in the range [0 to 4294967295]. The signed integer is represented in twos-complement notation. In the below code the signed integer will be converted to the maximum unsigned integer then compared with the unsigned integer.

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#problems-with-c #dicey-issues-in-c #c-programming #c++ #c #cplusplus