Javascript code: const bigArray2 = [ [1, 2, 3], [2, 4, 6], [3, 6, 9], ]; //creates single-layer array containing all elements of every array within bigArray2 const combinedArray = bigArray2.reduce((accumulated, current) => { for (element of current) { accumulated.push(element);…
I need to transform the following structure using React. export const bodyRows = [ { row: [{ cell: "Name" }, { cell: "Allan, Trent" }, { cell: "Smith, Nathan" }, { cell: "Howard, Greg" }], }, { row: [{ cell:…
Let's say we have a function that makes expensive calculation and an array of source values for which we do the calculation. We want to get a first return value of the function that is not null and return it.…
I have an array of objcets. With reduce method after looping i want to receive two seperate arrays. Now, i am doing this way. const dogs = [ { weight: 22, curFood: 250, owners: ['Alice', 'Bob'] }, { weight: 8,…
Need to reduce an array of Objects to return the highest value of the same name. Need the following, [ { name: 'a', value: 20 }, { name: 'a', value: 80 }, { name: 'b', value: 90 }, { name:…
I want to reduce an array of objects like this: var data = [{ item: "Item 1", pages: 30, chapters: 3 }, { item: "Item 1", pages: 50, chapters: 3 }, { item: "Item 2", pages: 10, chapters: 3 }…
Is it possible to have two accumulators with the reduce method? I need to pass another const inside my reduce. I want to do the same as const one with const two. Do I have to create a new method…
I'm using React JS, and I'm trying to find the average of this array: [ "75.0%", "50.0%", "66.66666666666666%", "66.66666666666666%", "33.33333333333333%", "58.333333333333336%", "50.0%", "66.66666666666666%", "41.66666666666667%", "75.0%", "41.66666666666667%", "50.0%", "50.0%", "72.72727272727273%" ] Here's my current code: const percentCorrects = [ "75.0%", "50.0%",…
I have this code snippet I'm using to group by a key field. It's using the reduce function and I understand the code except the part where the result or accumulator of the function is being edited. If I were…
I've got data like this [ [ '@test','1.2.6-unstable' ], [ '@test','1.3.2-unstable' ], [ '@test','1.4.6-unstable' ], [ '@test2','4.0.1-unstable' ], [ '@test2','4.0.2-unstable' ], [ '@test2','4.0.3-unstable' ], [ '@test3','2.2.0-unstable' ], [ '@test3','2.2.3-unstable' ], [ '@test3','2.2.9-unstable' ], ... ] and I'm trying to group…