I have an array of json objects as Now i want to group data for same accountid for a year. For example Please guide me how can achieve this ? Answer Use forEach over items and Build an object with keys and accountId (have separate buckets for each month). Get Object.values from the object just built.
Tag: arrays
How to filter array based on selected objects itself Java script
How to filter an array in Javascript by object value for the below example: and if I selected the below values Expected to get this values newArray2= [6,7,8,9]; Answer It’s built into modern day JavaScript Assuming your array has only number values
Get value from array key and build a new array
I cannot get the value of ‘Date’ key to build my array. The console shows this output: Seems like the problem is with Object.keys(o)[0]. How can I fix this? Answer You actually want the first value, not the first key. However, since you already know the name of the key, you can simply use o.Date.
How do i achieve this kind of sorting with JavaScript?
So i have a ‘structure’ like below & i need to sort it with the order of the ‘key values’ below for getting the “output” below. how can i achieve this? STRUCTURE: KEY VALUES: OUTPUT AFTER SORTING I want to filter the data structure format i am receiving from an API endp…
Array of products arrange by category
I’m trying to arrange this array of products by categories. For now, I get the count of each category but I can’t figure out how to make this two dimension array output. This is my code for now: Answer You can group elements by reducing over the array using an object to store elements belonging to…
Why can’t I access my JavaScript array by index outside of the d3 then function?
The ultimate goal is to create a d3 stacked diverging bar chart. The votesData object is created successfully from the data, but I can only access the data within the d3 then function even though the array is created outside of it? Code: The first set of logs return the array and the first object as expected …
How to group by, calculate sum and get average in JavaScript array?
I have array of object Expected result: I use reduce() method to group the objects in an array by ‘group’ and calulate sum: How to group object of Array by key ‘group’ and calulate average?. I tried: But Expected result: Answer You could simply use reduce to get the total of age groups…
Filter nested obejct
So I have this function that in theory should filter an array of movies by a given genre, but i get this error: Am I doing this stuff right or did i mess up one of the functions? Any help would be very much appreciated! edit: here’s an example of a movie object Answer as some comments suggested, i was
Write nested map function
I have an object like this: Expected output : And I already wrote a function like this: I can write another function to flatten the output of the code above, but is there any other way to write the code above into a more general function (not hardcoded) that can apply to any object? Answer You can use a recur…
JavaScript: let TypeError: for multi-dimensional array inside if statement [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 2 y…