
Mapping an array within a mapped array? - JavaScript - The …
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 …
How to use JavaScript Array.prototype.map() - JavaScript Map …
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 …
Using IF condition in Javascript's map method
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, …
Using destructuring in .map - JavaScript - The freeCodeCamp Forum
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 …
Mapping Array to Table Issue - JavaScript - The freeCodeCamp …
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:
Array.prototype.map() method returns an empty array - JavaScript
Jan 24, 2018 · After calling the map() method on the stream array, which contains objects of streamers, the map() method returns an empty array, instead of an array of components. …
Mapping an array of objects/Property undefined - JavaScript - The ...
Aug 15, 2021 · I want to map an array that contains series of objects. Each object contains a ‘keyTrigger’ property. Values of this property are: ‘Q’, ‘X’ and ‘C’. I am trying to map this …
How to Map () a subarray or nested array - JavaScript - The ...
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 …
Map with 2 parameters - JavaScript - The freeCodeCamp Forum
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 => …
Using .Map() on nested arrays - JavaScript - The freeCodeCamp …
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 …