I have a list of players which belong to a group each. How can I use a filter to list the users per group?  [{name: 'Gene', team: 'team alpha'},  {name: 'George', team: 'team beta'},  {name: 'Steve', team: &#...
Does anyone know of a (lodash if possible too) way to group an array of objects by an object key then create a new array of objects based on the grouping? For example, I have an array of car objects:  var cars = [     {         'make': '...
I have this sample data returned from an API.  I'm using Lodash's _.groupBy to convert the data into an object I can use better. The raw data returned is this:  [     {         "name": "jim",         "color": "bl...
Let's say that I have an array of arrays, like so:  [   [0, 1, 3],   [2, 4, 6],   [5, 5, 7],   [10, 0, 3] ]   How do I generate a new array that sums all of the values at each position of the inner arrays in javascript? In this case, the result w...
I have a set of JSON array and I want the result to be grouped by the "Id" column. I will not use underscore.js for this, as this can't be used in our project. The only option is to do it with jQuery. My source array and expected results...
The following (simplified) json type of data defines a Contact:  {   id:   number;   name: string;   phone: string;   email: string }   There is the following group of data:  +---+----------+-------------+---------------------------+  |id | name...
I have an Ext.grid.Panel that I'd like grouped by a field, but to display a different field in the grouping header. For example, if my model has status_id and status_name fields, I'd like to group by status_id, but show the status_name in the...
I have an array store Task information. Each task has also an array of taskId that it is depending on.   Input  let inputArr = [     {         id: 1,         dependOnTasks: [2, 3]     },     {         id: 2,         dependOnTasks: [3]     },     {...
I am trying to create a table, with some grouping headers. All is well when i have 1 group, but how do i create dynamic groups?  This is what i have so far (for 1 group):  var groupby = ''; arrdata.each(function(element){     if (groupby != e...
Problem  I have a 2d-array, which is actually data entered into Google Sheet. It is sorted by logic, defined by a user.   The goal is to enter new lines at the end of this table and then sort it by position.     Saying "by position" I mean &...

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