Sep 24, 2018 · I have an array of objects in my state called ‘ideas’. Each object in the array has a property called ‘premises’, and that property is an array. I’m trying to map through ideas, and …

Jul 24, 2022 · map returns a new array of same size, you can couple it with filter if you want to change the array elements, and also reduce the number 1 Like jyotirmoydas12 July 24, 2022, …

May 31, 2023 · The method map of the Array prototype allows you to grab a hold of each element inside an array and apply a function to them. After map finishes iterating through the array, it …

Jul 23, 2017 · hello everyone again, I am really confused on how to use a subarray of numbers or strings. Practicing, I don’t have any problems using map() method because in my …

May 23, 2021 · Map takes a function is its argument. This function receives an array element as its argument and returns a new array element. In this case, the function is written in arrow …

Jan 26, 2020 · Tell us what’s happening: I’m trying to solve the Use the map Method to Extract Data from an Array challenge. I can get this line to work: ratings = watchList.map(title => …

May 30, 2022 · Each element in that array is an array of two numbers. You don’t need to map each sub-array, just return an array where the first element is the same and the second one is …

Mar 2, 2022 · But you want a reduced array. Pay attention to the title of the challenge: “Use the reduce Method to Analyze Data” Read the instructions closely: The reduce method allows for …

Sep 4, 2021 · There’s some data missing here, you’ve added another thing on top of the original question (dates array), so can’t tell what it’s supposed to be doing but something like:

May 15, 2019 · So map returns the same number of elements as the original, but the element value will be transformed in some way and filter will return the same or less number of …