C# flatten array of arrays

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WebAug 24, 2010 · public static string Flatten (this IEnumerable elems, string separator) { if (elems == null) { return null; } StringBuilder sb = new StringBuilder (); foreach (object elem in elems) { if (sb.Length > 0) { sb.Append (separator); } sb.Append (elem); } return sb.ToString (); } ...Which I use like so: strArray.Flatten (", "); Share WebApr 20, 2011 · 1 Answer Sorted by: 51 You can use SelectMany to flatten such a collection. var array = arrayOfArrays.SelectMany (item => item).Distinct ().ToArray (); // C# Dim array = arrayOfArrays.SelectMany (Function (item) item).Distinct ().ToArray () // VB Share Improve this answer Follow edited Apr 19, 2011 at 19:14 answered Apr 19, 2011 at 19:09

How to flatten an array in JavaScript - javatpoint

WebFeb 27, 2011 · For a jagged array you can probably do something like arr.SelectMany (x=>x).ToList (). On T [,] you can simply do arr.ToList () since the IEnumerable of T [,] returns all elements in the 2D array. Looks like the 2D array only implements IEnumerable but not IEnumerable so you need to insert a Cast like yetanothercoder … WebSep 16, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. house cannith names

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WebOct 26, 2024 · Here we consider how to access a flattened array as a 2D array. You multiply the first coordinate by the width, and then add the second coordinate. Note To … WebSep 4, 2024 · Flatten an array of objects that may contain arrays How can I flatten a collection of objects (which in turn contain collections)? Generically Flatten Json using c# (etc). i believe that this is the closest solution? but unsure if there is some better approach For more background, i need this for CSV export. WebFeb 6, 2012 · unnest is a useful to flatten an n-dimensional matrix: SELECT unnest (ARRAY [ARRAY [1,2,3],ARRAY [4,5,6]]); returns {1, 2, 3, 4, 5, 6} (you get the same result even if your matrix has higher dimensions: SELECT unnest (ARRAY [ARRAY [ARRAY [1],ARRAY [2],ARRAY [3]],ARRAY [ARRAY [4],ARRAY [5],ARRAY [6]]]);) – Nate … house cannith favor

c# - How to "flatten" or "index" 3D-array in 1D array? - Stack Overflow

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WebMay 24, 2010 · C# has multidimensional and jagged arrays as seperate concepts, where int [,] is a 2 dimensional array, and int [] [] is a jagged array of arrays and each given array is not required to have the same length. You can easily do a foreach on the jagged array, but a 2D array is not the same type of structure. WebDec 11, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. linn missouri city hallWebJan 8, 2013 · I'm trying to flatten a 3 dimensional array of (x,y,z) coordinates to a flatten array. So here it basically says the solution is; elements [x] [y] [z] = Tiles [x + y*WIDTH + Z*WIDTH*DEPTH] This is all good for me except that the above one prioritise x … house captain badges amazon

"WebSep 15, 2015 · A 1.5 A 2.5 A 3.5 B 1.6 B 2.6 C 3.6 You can use this code var sampleReadings = new List> (); samples.ForEach (s => s.RawReadings.ToList ().ForEach (r => sampleReadings.Add (new KeyValuePair (s.Name, r)))); Share Improve this answer Follow answered Sep 15, 2015 at … " - C# flatten array of arrays

C# flatten array of arrays

How to flatten an array in JavaScript - javatpoint

WebTo flatten an array of single element arrays, you don't need to import a library, a simple loop is both the simplest and most efficient solution : for (var i = 0; i < a.length; i++) { a [i] = a [i] [0]; } To downvoters: please read the question, don't downvote because it doesn't suit your very different problem. WebOct 26, 2024 · 2D Array. Step 1 We access the 2D array's total element count—the Length property on a 2D returns this value. Step 2 We copy the 2D array elements into a 1D array. We loop over each dimension. Step 3 Here we return the 1D array. To access elements with 2 indexes, we will need to multiply the first index. using System; class Program { static ...

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Web2 Answers. To select an array of PhoneNumber from List use SelectMany: List customers = [data]; PhoneNumber phoneNumbers = customers.SelectMany (x=>x.PhoneNumbers).ToArray (); It's not clear at all from your … WebOct 2, 2015 · I have a multi dimensional array which i need to convert to a list of arrays. Not one single array, but for each iteration of the first dimension i need a separate array containing the values in the second dimension. How do I convert this: int[,] dummyArray = new int[,] { {1,2,3}, {4,5,6}};

WebDec 5, 2024 · SelectMany does the flattening, Zip, as its name suggests, "zips" the Number and Value arrays together, and apply the function (n, v) => new Flattened (x.Id, n, v) to each pair, creating a Flattened object from each pair. You can use Linq for this, a combination of SelectMany and Zip should do the trick. WebSep 19, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

WebZero bound single dimensional arrays implements both IEnumerable and IEnumerable, but multi-dimensional arrays, unfortunately, implements only IEnumerable.The "workaround" by @Jader Dias indeed converts a multidimensional array to IEnumerable but with a huge cost: every element of an array will be boxed.. Here is a version that …

WebOverall, while local arrays may be faster than static arrays to read/write in C#, the performance difference will depend on the specifics of your code and the size of the arrays. If you need to store a large amount of data, it may be more appropriate to use a static array or another type of collection that is optimized for large data sets.

WebSep 1, 2011 · Basically, if the resized array is larger it just adds blank rectangles to the edges. If it is smaller then it should just cut off the edges. When doing this: Array.Copy (tiles, newArray, newWidth * newHeight); It messes up the array and all of its contents become disordered and do not retain their original index. house capet ck3WebSep 10, 2011 · The algorithm is mostly the same. If you have a 3D array Original [HEIGHT, WIDTH, DEPTH] then you could turn it into Flat [HEIGHT * WIDTH * DEPTH] by. Flat [x + WIDTH * (y + DEPTH * z)] = Original [x, y, z] As an aside, you should prefer arrays of arrays over multi-dimensional arrays in .NET. linnmon / adils reviewWebDec 27, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. linn mo city hallWebJan 2, 2015 · function flattenArray (inArr) { var ret = []; inArr.forEach (function (arr) { if (arr.constructor.toString ().indexOf ("Array") > -1) { ret = ret.concat (flattenArray (arr)); } else { ret.push (arr); } }); return ret; } db.collection.find ( { 'Countries': { '$exists': true } }).forEach (function (doc) { doc.Countries = flattenArray … linnmon chipsWebNov 12, 2012 · I'm trying to use AutoMapper to flatten multiple levels of arrays. Consider the following source classes: ... c#; flatten; automapper-2; or ask your own question. ... Merge/flatten an array of arrays. 9. AutoMapper Custom Type Converter not working. 32. linn mo craft showWebI think you may be looking for Jagged Arrays, which are different from multi-dimensional arrays (as you are using in your example) in C#. Converting the arrays in your declarations to jagged arrays should make it work. However, you'll still need to use two loops to iterate over all the items in the 2D jagged array. linn mo high schoolWebMar 18, 2016 · One other option is to flatten your array of arrays into a single array that you can then use Promise.all () on directly. Straight from an example on MDN, you can do that like this using .reduce () and .concat (): linnmon connecting hardware