Is This the Most Useful JavaScript Method?

Рет қаралды 1,224

28 күн бұрын

Methods such as map(), filter(), every() & reduce() are useful, but which one would you choose if you couldn't use one of the other 3 again? Let's find out.
For your reference, check this out:
developer.mozilla.org/en-US/d...
🏫 My Udemy Courses - www.udemy.com/user/domenic-co...
🎨 Download my VS Code theme - marketplace.visualstudio.com/...
💜 Join my Discord Server - / discord
🐦 Find me on Twitter - / dcodeyt
💸 Support me on Patreon - / dcode
📰 Follow me on DEV Community - dev.to/dcodeyt
📹 Join this channel to get access to perks - / @dcode-software
If this video helped you out and you'd like to see more, make sure to leave a like and subscribe to dcode!
#dcode #javascript

Пікірлер: 15

@EricEGunes 27 күн бұрын

Absolutely!!! Reduce() ! You can do same jobs if you know how to! - but the performance results for processing an array of 100,000 elements: • map() took approximately 0.044 seconds • reduce() took approximately 19.010 seconds

@beratyilmaz7951 27 күн бұрын

not true, write your code so we can test it

@raven.4815 27 күн бұрын

A whooping 19 secs? That's absolute madness

@alexanderkomanov4151 25 күн бұрын

Nice one! Thanks!

@marshallgraphic 27 күн бұрын

I don't think result && ... will reassign the value to result, or am I mistaking the prev result is the value of the previous return value?

@mimosveta 26 күн бұрын

it will

@dcode-software 26 күн бұрын

Yeah it works because once it reaches the first element that gives "false", the value can't ever evaluate to "true" ever again because we use &&

@mimosveta 26 күн бұрын

I knew of it for few years, and basically never used it, but I think I will start now... I guess I'll first use it to translate other methods to reduce, just to get used to it...

@dcode-software 26 күн бұрын

Yeah sure, but of course, I'm not suggesting you replace "map" with "reduce". If the method exists for the purpose then definitely use it. This video is more for education