Treehouse | Community | Combining filter() and reduce()

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Ravel Oliveira
Front End Web Development Techdegree Student 10,337 Points
Why am i getting the 'Bummer: Both the `reduce` and `filter` methods have not been called yet.' ERROR?

Posted October 14, 2024 6:41pm by Ravel Oliveira

Ravel Oliveira
Front End Web Development Techdegree Student 10,337 Points
1 Answer
Aleksandar Vasilkov
Front End Web Development Techdegree Graduate 13,835 Points
No matter what kind of solution I come up with, the result is always "It looks like you changed or removed the provided"

Posted October 16, 2023 9:04pm by Aleksandar Vasilkov

Aleksandar Vasilkov
Front End Web Development Techdegree Graduate 13,835 Points
2 Answers
Melissa Benton
Front End Web Development Techdegree Graduate 17,805 Points
Still not getting the right array.

Posted July 10, 2023 10:32pm by Melissa Benton

Melissa Benton
Front End Web Development Techdegree Graduate 17,805 Points
1 Answer
Melissa Benton
Front End Web Development Techdegree Graduate 17,805 Points
How do I create an array of hobbies?

Posted July 9, 2023 10:56pm by Melissa Benton

Melissa Benton
Front End Web Development Techdegree Graduate 17,805 Points
1 Answer
Melissa Benton
Front End Web Development Techdegree Graduate 17,805 Points
How do I chain .filter and .map together correctly?

Posted July 8, 2023 11:27pm by Melissa Benton

Melissa Benton
Front End Web Development Techdegree Graduate 17,805 Points
1 Answer
Michelle Villagran
228 Points
Function syntax help using reduce method

Posted June 28, 2023 8:14pm by Michelle Villagran

Michelle Villagran
228 Points
2 Answers
Joseph Quintiliano
Front End Web Development Techdegree Graduate 14,338 Points
Setting the reduce parameters into a variable and it wont accept it as an answer

Posted April 24, 2023 7:46pm by Joseph Quintiliano

Joseph Quintiliano
Front End Web Development Techdegree Graduate 14,338 Points
1 Answer
Joseph Quintiliano
Front End Web Development Techdegree Graduate 14,338 Points
why would the substring parameters be (0, 3) and not (0, 2) if i only want to return the first three letters?

Posted April 24, 2023 6:16pm by Joseph Quintiliano

Joseph Quintiliano
Front End Web Development Techdegree Graduate 14,338 Points
3 Answers
Samuel Kleos
Front End Web Development Techdegree Student 13,307 Points
Is this approach okay? #flatten #reduce #map

Posted February 25, 2023 10:04am by Samuel Kleos

Samuel Kleos
Front End Web Development Techdegree Student 13,307 Points
1 Answer
Samuel Kleos
Front End Web Development Techdegree Student 13,307 Points
What if.. 🤔 We reordered the array.

Posted February 25, 2023 6:23am by Samuel Kleos

Samuel Kleos
Front End Web Development Techdegree Student 13,307 Points
1 Answer
Samuel Kleos
Front End Web Development Techdegree Student 13,307 Points
What if... 🤔 these two methods are the same. Then is it true .reduce() is just performing a variable assignment?

Posted February 22, 2023 4:48am by Samuel Kleos

Samuel Kleos
Front End Web Development Techdegree Student 13,307 Points
1 Answer
Samuel Kleos
Front End Web Development Techdegree Student 13,307 Points
Why doesn't parseInt(number).toString() work?

Posted February 21, 2023 12:57am by Samuel Kleos

Samuel Kleos
Front End Web Development Techdegree Student 13,307 Points
1 Answer
Amy Preci
6,247 Points
Did anyone else get an error when adding .toFixed(2)?

Posted February 2, 2023 2:50am by Amy Preci

Amy Preci
6,247 Points
1 Answer
Maksim Yin
4,833 Points
Why is it not iterable?

Posted January 21, 2023 7:02pm by Maksim Yin

Maksim Yin
4,833 Points
1 Answer
Samantha McElhinney
1,931 Points
I'm not sure why I'm getting the error identifier already defined when I'm reassigning the variable with const

Posted January 21, 2023 2:06am by Samantha McElhinney

Samantha McElhinney
1,931 Points
1 Answer
Peter Huang
5,427 Points
if map() the same as join()?

Posted January 2, 2023 4:09am by Peter Huang

Peter Huang
5,427 Points
2 Answers
Peter Huang
5,427 Points
Need help with this challenge

Posted December 24, 2022 9:50pm by Peter Huang

Peter Huang
5,427 Points
1 Answer
Peter Huang
5,427 Points
Can someone provide the answers for this challenge?

Posted December 24, 2022 4:38am by Peter Huang

Peter Huang
5,427 Points
1 Answer
zkb
Front End Web Development Techdegree Graduate 13,636 Points
Can somebody help me figure out what's wrong with my code?

Posted December 12, 2022 7:11am by zkb

zkb
Front End Web Development Techdegree Graduate 13,636 Points
1 Answer
Elliott Tuan
7,790 Points
Why can't I return the highest price with teacher's method in video?

Posted December 9, 2022 3:32am by Elliott Tuan

Elliott Tuan
7,790 Points
1 Answer
Istvan Toth
14,348 Points
Why do we need filter to make things more complicated if reduce does the job by itself?

Posted November 29, 2022 10:25pm by Istvan Toth

Istvan Toth
14,348 Points
1 Answer
Ede Harrison
3,615 Points
map() with template literals in JavaScript

Posted September 29, 2022 11:40am by Ede Harrison

Ede Harrison
3,615 Points
1 Answer
Remi Banjoko
Front End Web Development Techdegree Graduate 14,721 Points
I'm trying to figure out how to access the values nested in the array of objects

Posted August 9, 2022 6:18pm by Remi Banjoko

Remi Banjoko
Front End Web Development Techdegree Graduate 14,721 Points
1 Answer
Willie Morris
Front End Web Development Techdegree Graduate 14,717 Points
this gets the right answer but says its wrong?

Posted August 6, 2022 11:40pm by Willie Morris

Willie Morris
Front End Web Development Techdegree Graduate 14,717 Points
1 Answer
Kade Rathbun
6,586 Points
Why is the initial value set to []?

Posted August 2, 2022 7:33pm by Kade Rathbun

Kade Rathbun
6,586 Points
1 Answer
Emil Lau
6,233 Points
userObject is not defined

Posted July 31, 2022 8:34am by Emil Lau

Emil Lau
6,233 Points
1 Answer
Emil Lau
6,233 Points
Why .push is not a function?

Posted July 31, 2022 6:06am by Emil Lau

Emil Lau
6,233 Points
1 Answer
James Reich
Front End Web Development Techdegree Graduate 14,854 Points
arr.charAt() vs arr[index]

Posted June 23, 2022 10:34pm by James Reich

James Reich
Front End Web Development Techdegree Graduate 14,854 Points
1 Answer
BETUL BASKAN
152 Points
const century20 = years.filter(number => number <= 2000); console.log(century20); why doesnt work?

Posted May 7, 2022 6:18am by BETUL BASKAN

BETUL BASKAN
152 Points
1 Answer
Cesar Garcia
Full Stack JavaScript Techdegree Student 5,184 Points
Reduce Method Question

Posted May 3, 2022 4:38am by Cesar Garcia

Cesar Garcia
Full Stack JavaScript Techdegree Student 5,184 Points
1 Answer

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