I’m writing a sudoku validator and I’ve run into a problem at the very end of it. I’m very new to coding, so please be patient with me. The function sudokuIsValid is supposed to take a puzzle (an array of 9 arrays) and check each column, row, and 3×3 grid to see if it is valid. The func…
Tag: arrays
Set zero for missing data in array of objects
I have the following arrays of objects, for example: Then I do the grouping and get the following result: The problem with the solution is that I cannot take into account the missing value (the object with the date “02-01” does not have an object with id: 2). I need to check that the object does n…
How to list out NextJS router param array
I have a NextJS catch all route which pulls in And retrieves all the parameters: If I log the params value I see all the URL path elements in the console. I would like to repeat out all the params values in an unordered list: But this outputs nothing. There are no elements displayed. How can I get this to
How to convert multiple object to just one object with Javascript?
As you can see i have a multiple object like “123”, “098”, and “456”, i want all of those object to be inside the object of multiple object. Example: output i expected: How can I achieve this? I’m sorry im not show any javascript code cause until now I have no idea wh…
Get Names of Array of Objects without Looping
I have an array of country objects (countries) and I’m trying to get just an array of the String names, so from this example: Just: [‘Canada’, ‘USA’, ..] etc. I’m trying to do this with but I can’t seem to get it. Any suggestions? Answer You’re quite close to ge…
How to rearrange array of objects into object of objects in node js?
I have Java script array like this: I need to convert above array of objects arr into object with key-value pair like below I need the it like this JSON, in the form of key-value pair. How can I achieve this? I need the data like this in order to render the output, can someone please help me with this?
Javascript join multiple arrays with & but I get duplicates
I have this project in which I create a link with multiple arrays that are joined with & signs. It works perfectly, but when I get more than 3 arrays, it doesn’t. When I skip a couple of questions I get a & sign at the beginning of the string and when I only choose the first it adds one
filter an array of objects in javascript, with siblings that match on a common key value
Suppose I have a javascript array of objects that looks like this: Now, suppose that I have a search string, like “War” or “and”. I want to get an array of objects where “title” contains the search string (case insensitive), but I want to ALSO include any sibling values wit…
JavaScript: How to move through my question array
I am really stuck! As a newbie, I am trying to build a guessing game for Flags of the World. Here is what I’m trying to do: I have an array of objects which I want to shuffle I then want to select the correct country that matches the image Add countries to three answer buttons below the image I
How to groupBy an Array of Objects and convert the duplicates
Hello to all i have this data structure that i need to group and if there are any duplicates to convert those two objects it in one line.. Data Structure Grouped function I have groupedBy address attrube by this function above by address My new data-structure is My final Result wanna be like this : Shipping A…