My array in variable is: I’ve mentioned key and value here for the 2D array, I’m trying to convert this to JSON string. I tried JSON.stringify(arraydata), arraydata is the variable where the array is stored, but it makes the string empty, whereas array data is correct. Edit: This is how I’m …
Tag: multidimensional-array
How to select all objects within an array by their key and add their values together?
So here’s what I’m trying to do, I have an application I’ve been working on that allows users to read articles and take quizzes on them, each article is contained in a category. Category has an _id which is unique. Quiz attempts are held within another table which refrences the article, whic…
How to compare a nested array of objects and only return common values
I have a nested array of objects which contains some duplicate values: I want to create a new single array from this data containing only the objects that exist in all the nested arrays: I have tried the following code: and: However these both only return an empty array. Would really appreciate any help. TIA …
Typescript data filtering on nested array based on another array
Im new to TS I have an array of data that looks like this I want to loop over a the data in the “industries” in the AllJobs array and check if any of those vales match any of the values in desiredSkills. If no matching values, filter out that object. I don’t know if im doing this right at
Javascript 2d array select around from single point
Say I have a 15×15 2d array See the character A? at y:9 and x:4 (index starts with 0). What I want to do here is to update the array where I select or update the 0s around the A to, say, asterisk (*). For an example, lets say I want 0s around the A as far as 3 indexes
Pass multi-dimension array into Google.visualization.arrayToDataTable
I want to draw a candlestick chart by using Google Chart , i have a multi-array array call chartdata and i failed to pass the multi-array array into google.visualization.arrayToDataTable([chartdata],true) and give errorLast domain does not have enough data columns (missing 3) it should look like this var data…
How to combine 2 arrays in a way that 1st element of array1 and 1st element of array2 and so on form a new array
I have 2 arrays. The first contains the years like [2021,2020,2019,2018,2017] and the second contains number of occurrence like [2,3,1,3,3] I want the new array to look like this [[2021,2],[2020,3],[2019,1],[2018,3],[2017,3]] How to do this? Please help! Thank you in advance. UPDATE: I tried doing this and it…
How to find the next position in a 2D array based on the current position? [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 10 months ago. Improve this question Suppose I have an array with 3 rows and 4 columns const arr = [[1,2,3,4]…
Get a value from a multidimensional array
I have a multidimensional array as follows: In my form the user would input a weight. What I am trying to do is if the weight is equal to or below the number in the weight part of the array that the corresponding rate is assigned to a variable. Am stuck on how to do this. Any push in the
Mapping a string into a 2D Array for a “zig-zag” effect
first post, new to coding in js. I am trying to create a function that takes a (2) string array as an input such as [“coderbyte”, “3”], the first string being any random string. The second string represents the number of rows the function should create in a 2D array. The function shoul…