I’ve got an array of objects which have a property in common ‘label’. But some of them have properties that others don’t : And I want duplicates (those objects with the same ‘label’ value) in this array to be removed and to keep only those which have the ‘id’ pr…
Tag: arrays
Testing whether you reach an array’s last item when using reduce() in Javascript
I am trying to implement the equivalent of .join() using .reduce() to answer a quiz on executeprogram.com. My code passes the tests, but it seems ugly. The specific issue that I have solved in an ugly way is this: The constructed join() function takes an array and a separator as arguments, but the separator s…
Map two separate arrays by matching object keys to values
Been scratching my head on this one for an entire evening with no solution in sight. Put simply I am querying two arrays from two separate APIs. They return data in following format: API 1 API 2 I need to match the object keys from the second API to the name value of playerInfo from first API so a new
javascript arrays of object comparing
I have a project when I get some data from a route in node and I need to compare with the last data I received to see if something changed, basically 2 arrays of objects. For the comparasion I used JSON.stringify(array1) = JSON.stringify(array2), but after I compare the arrays I want to put the value of array…
Calculating the mode value of an array
The function for returning the mode value of an array works on every test except one. When I pass the following array through the function, I get a TypeError. I figured out that it has something to do with the number 0 in the passed array, but I don’t know why and I don’t know how to solve the pro…
Sort desc on date and if tie then on risk in javascript array
I’ve array of objects which i want to sort first on date i.e, ‘create_date_format’ in desc & if tie then sort on risk alphabetically i.e, asc I tried lodash.orderBy(risk_list, [‘create_date_format’, ‘risk’], [‘desc’]) but as date is in string format it…
How to Give Dynamic Routing in react js using simple array of object file
From this to>>> <Route path={“user/:id”} component={user} /> What code should i use in “User” component if useParams has id=1 then how to show only id 1, name kuber, phone 8989 Answer In the simplest way you can do it like this: in your User.js/jsx import the userData. T…
Filter array based on multiple filters
I have a table that I want to be able to apply multiple filters to. My current code will filter by email OR status but I want it to do both so a user can refine the results. I’ve tried adding && instead of || in the filteredInvoices variable. I allow the user to select the filters they want to
How can I send a Discord Direct Message to all users on a server on API v12?
I’m trying to update my discord bot from API v11 to API v12, and I’m having problems to send a direct message to all server users. It is not returning any error and I’m using the latest version from Discord API This is the function: Could someone help me? Answer First of all, depending on th…
Create complex array from array in React
Thats the original array I have from backend and now I want to build something like this: So the chartDatasets will be datasets and the chartLabels will be labels.. I think this is pretty easy but I don’t know how I can do it. I’m saving the original array in state so.. Thanks Answer If you have t…