Why Javascript is 100x Faster than Python

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If you've been hearing a lot about javascript performing better than Python on the computational side or this is your first time hearing about it. Well in this video we will go into the details of why javascript performance is better than python 90% of the time on different algorithms, problems, and mathematical calculations.
⭐ Timestamps ⭐
00:00 Introduction (Javascript Vs. Python)
00:29 Skillshare Sponsorship
03:55 Simple For loop test
07:25 Increasing Number of loops to the limit
10:53 I/O Benchmark
12:47 Testing Basic HTTP Boot
15:07 Heavy calculations (Recursive)
16:46 Why is it better to use Pypy instead of Python
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[@DIN_A8]

I am learning both at the moment. I am 39 yrs old and do a re-education. Django with a JS library is a pretty powerful combination.

[@eminqasimov3398]

I like your benchmark type of videos. pls make benchmark comparison about popular server frameworks - laravel, django, exress, fastfy, go......etc

[@vitorhmtts]

hyperfine can bench multiple commands and show the diference between them, like `hyperfine 'command 1' 'command 2' 'command 3'`. you should've used it that way.

[@exhopt]

I’d be interested to see the results with bun or deno. Not sure if it would make any difference for the demonstrated applications

[@justsample9185]

couldn't find the answer for the title "Why Javascript is 100x Faster than Python".. just running some tests

[@kusumasandi]

just because javascript using jit to compile bytecode into binary and python using interpreated compiler, javascript also faster for multiple io because it anynchronous by default

[@diegocascavita]

That's the benchmark that i was waiting thanks u !

[@Ahamshep]

I wonder how much of this speed difference is just due to caching. With the cache decorator mCoding does 400 fib loops in seemingly milliseconds. kzbin.info/www/bejne/ep-uqX58jadnhLM

[@ThankYouESM]

I'm trying to code a basic enough Python -To-JavaScript for generating 3D graphics mainly for creating smartphone games.

[@FenoDat]

Bruh just use a game engine like unity. Neither python nor javascript are meant to create 3D games since they're extremely slow compared to languages like C# ou C++ that are comonly used in game engines.

[@ThankYouESM]

@@FenoDat I've already made a few awesome games with a Python-To-JavaScript Game Engine a friend helped develop over 15 years ago, but... I no longer have the access to his server to compile it since the year after he died in a fatal car accident. Had told me it only took a month for 3 of them to complete that project. I tried Unity, but... it was far too limiting by comparison on account of not being able to implement my own code as I did with the Py-To-JS-GE. I'm not aiming for realism... just enough to make it look pleasant enough at 2MB maximum. I want all of mine to be HTML5 simply for the compatibility, therefore... C# and C++ are absolutely out of the question, thanks anyway.

[@joshgoebel4913]

This is hardly fair (simple loops). Your using an iterator on Python and just a plain number on JS. This is comparing apples to oranges.

[@maxwelljohnson7358]

cringe clickbait, i say as im a node TS dev -that actually understands python

[@monsieuralexandergulbu3678]

It's not fair to first show the slow vs fast and then switch.. If you're using the best performance implementation of JavaScript, then why you're not using the best performance implementation of python from the start? (pypy/cython/numba and not cpython as your showed)

[@FlanPoirot]

no, it is fair V8 is the implementation used by almost everyone, even the firefox implementation is very fast. the official python implementation is pretty slow, it's also the most used implementation and is what's installed by default on all linux distros. people only really use those other implementations when they're looking for ways to improve execution speed in production level code, most won't. even then, V8 is still faster than pypy if you're curious about that

[@DommageCollateral]

clickbait doesnt work for devs bro

[@mgr1282]

Python with numba, pypy, numpy, ... is fast.

[@maxwellflitton3973]

yes.... and that's because the libraries you've mentioned exploit C code to get that speed.

[@mgr1282]

@@maxwellflitton3973 That's true & It was not a secret.

[@mgr1282]

@@maxwellflitton3973 I think PyPy & Numba use a jit compiler to run faster.

[@maxwellflitton3973]

@@mgr1282 yes it's not a secret ...... but it's also not a testament to the python language. It's a testament to the C language then isn't it. Plus numba, pypy, numpy are limited in scope. I doubt you could increase the efficiency of threads managing connections on a server with those libraries. Having coded in Numba PyPy etc, they're limited. They're definitely not a substitute for an entire language. You can't even append on a list in numba. You raising these packages has zero effect on the discourse of the subject

[@ibrahimshehuibrahim918]

lmao 100 times

[@xoldyckk176]

Try benchmarking v8 vs pypy.

[@CaptainLoony]

What's the difference? Didn't he just do that?

[@mrbigberd]

@@CaptainLoony He benched vs Cpython and Pypy. Pypy is much faster, but not generally as fast as JS and it sees almost no use because it's incompatible with so many libraries (because they are written in C/C++).

[@_chiku11]

But I love Python 💗💗💗💗

[@AnglephileSwedenGerman]

Lol a yr later+

[@catayyyy]

Have fun using JavaScript while coding a self driving car algorithm. Hope you get the point.

[@dinoscheidt]

Your not using python, but C++ libraries that you call via python. If python would be responsible for self driving cars algorithms, they today wouldn’t be able to turn on the blinker. Python is an easy to lern domain language without types and is absolutely synchronous that uses many C++ libraries. Great for people that need to automate data processing and don’t know software engineering. Bad news for people that believe this is software engineering.

[@coertzenjfs]

I could do that...

[@catayyyy]

Lol, you guys didn't get the point :) I didn't suggest anything to build a self driving car. "JavaScript is 100x faster" on what terms ? Get it ? He should have said for example "JavaScript is 100x faster when it comes to calculation basic arithmetic operations than python" maybe. E.g. "Php is better than java", "Python is the best language", "Java has not enough open source libraries"...

[@UncleDavid]

@@catayyyy ur talking to a wall lol

[@marvin.toyboy]

​@@catayyyy fact is that Javascript is always faster and have far less consumption. So we all don't give a single flying f*

[@DommageCollateral]

JAVASCRIPT CANT BE EXECUTED FROM THE GPU!!! HOW CAN JS BE FASTER THAN PYTHON???!!

[@marvin.toyboy]

1/ We can use Javascript langage for GPUs 2/ It's faster than Python 3/ Your statement is just pointing to the fact that the GPU are faster than the CPU (and it's not for all tasks), not Python. Python consume far more energy and is slower than JS, running it into a different electronic component such as a GPU doesn't mean that Python itself is faster than JS. You guys using Python don't understand what is a "benchmark" because you are like all those sheep who heard the name of "python" and who have been so much impressed by the name (of a dangerous animal) that they choosed it because of his name and popularity but nothing else, it's pretty obvious and dumb. Thanksfully we have now people using their brain and making AI libraries for NodeJS. (not everybody is using Python for his name and popularity but most people clearly do, they have no clue (like you) what is a benchmark)

[@sar_amd_7771]

Where's it written that JavaScript can't run on gpu lol😅

[@DommageCollateral]

@@sar_amd_7771 besides that you also have to pass the data using sharedmemory and it takes a lot of preperation to do this. you have to use the correct nativearrays (associative arrays) and BufferAttribute and strides. so its gonna be hard to pass strings to the gpu if you use webgl

[@DommageCollateral]

dont know where the other answer has gone but: theres a new package released by nvidia, but im not sure how well its implemented besides that you can only use webgl

[@YTChannel344]

@@DommageCollateralIt can be used with GPU otherwise there would be no point for canvas based GPU accessible HTML5 games or other game engines leveraging it for web games.