Javascript .filter(), .map() and .reduce() on real world examples

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The video explains how javascript .filter(), map() and .reduce() methods work.

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Thanks for the excellent explanation, using separate methods and then combine them into a new function.

williamjog

So concise and really well done. Thanks for this!

nadiaharrismartinez

Many thanks for this. A good explanation!

douglasmiranda

finally, i understood how this works and for what, thank you!

rancidratd

thank you heaps, wonderful video, clear and precise with a good example, filter, map and reduce doesnt scare me anymore..haha

kiwi-Centaur

This explanation is awesome! Thanks a lot!

santiagoortiz

Wow the real world example helps alot. Thanks

Tengkuma

In the last example .map() just felt like another .filter(), good video!

Summer

Great explanation.SHORT AND SMART AND SWEET AND SUPER

jeevanthalluri

Free checker is an email logger your email list can be retrieved by the tools builder

merlinafera

How do u view an output in the terminal of vscode????

adambenson

Ai biết tiếng việt có thể vietsub lại được không? Tiếng anh của mình rất kém nên không thể hiểu được anh ấy nói gì . Please

thantrunguc

If it's passable or not in Multidimensional array map and reduce filter in lamda expression
If it's passable how to do example

romesupaila

const appreciationArr = [
{
id: 1,
msg: "All 3 methods explained very well, "
},
{
id: 1,
msg: " Thanks a lot!"
},
{
id: 2,
msg: "Good job "
},
{
id: 2,
msg: "and keep going!!"
},
];
const resultArr = appreciationArr
.filter((item) => item.id === 1)
.map((resItem) => resItem.msg)
.reduce((item1, item2) => {
return item1 + item2;
});
console.log(resultArr);

sureshmg

why you arent working in console.. it is not look good to learn on your site

svtuffq

Could not get these to click. It just clicked. Thanks!

AkinBelieve

I'm still as lost as I was before watching. I guess I need a break for my brain to work again...

geritoxnm

We are new learners …… now here in 2023 ❤😢

Kingstar_officialboy

Ur watch time would increase if u would just zoom in and make it easier for us to see what's going on in the screen. Or people would just stop watching ur vid midway like how I am leaving

prasenjeet

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