Simple explanation of basic LINQ

100%

Simple explanation of basic LINQ

✓ Published0🌍 Public

Last edited Mar 14, 2026

Created on Mar 14, 2026

This example presents a side-by-side cheat sheet that maps LINQ query operators to their JavaScript array method equivalents. It shows how operations like filtering, mapping, grouping, and aggregating translate directly between C# and JavaScript, using code snippets for both languages. The reference table pairs LINQ methods such as Where, Select, and GroupBy with JavaScript’s filter, map, and reduce, while the examples demonstrate the syntax on an orders dataset. The material highlights the conceptual similarity of functional collection processing across both languages, making it a practical quick-reference for developers transitioning between C# and JavaScript.

AI-generated description

Similar vizzes

Loading thumbnail…

linq.js - LINQ for JavaScript ver 2.2.0.2 (Jan. 21th, 2011)

This example demonstrates the linq.js library, a LINQ-to-JavaScript implementation, through a compact source file that defines an `Enumerable` object with a chainable API. The code showcases methods like `Choice`, `Cycle`, `From`, and `Range`, which generate or transform sequences, along with internal enumerator and dispose patterns for lazy iteration. It highlights how functional query operations can be ported from .NET to JavaScript, using constructors, prototype methods, and lambda-style function creation to mimic LINQ’s deferred execution model.

JJn1532

69% match

Loading thumbnail…

Linq exercises I did in .NetFiddle

This example showcases a series of LINQ (Language Integrated Query) exercises in C# that progressively build from basic filtering to grouping and aggregation. The code, stored as a gist by abonello, defines a TaskItem class with Id, Title, and Completed properties, then demonstrates core LINQ operations including Where for filtering, OrderBy for sorting, Select for projection, Count and Any for aggregation, and FirstOrDefault for element retrieval. The exercises also include GroupBy to summarize completed vs. pending tasks, with each iteration refining the approach—starting with inline ForEach loops, moving to a reusable PrintTasks helper method, and finally exploring concise query syntax with null-conditional operators. The examples show practical patterns for querying in-memory collections, making it useful for developers learning LINQ or preparing for coding interviews.

Aabonello

62% match

Loading thumbnail…

The Ultimate JavaScript Cheatsheet --> https://github.com/LeCoupa/awesome-cheatsheets

This example visualizes the structure of JavaScript's global Array object, listing its properties, mutator, accessor, and iteration methods alongside code samples. It presents the reference material from the Ultimate JavaScript Cheatsheet, a gist by Kirun1, as a static text-based layout rather than a graphical chart. The organization groups entries by category, with each line showing syntax and a brief description, rendering the data directly from the source code’s structured comments.

KKirun1

60% match

Loading thumbnail…

JavaScript Arrays

This example demonstrates the fundamental array methods in JavaScript, including `range`, `filter`, `map`, `sort`, `forEach`, and `reduce`. The code uses D3 v6’s `ascending` and `decending` imports to properly sort arrays, while also showcasing custom comparator functions. It works with a simple generated range of numbers and a small dataset of key-value entries, logging results to the console. The page renders only the static title “JavaScript Arrays” with no visual output, focusing entirely on algorithmic array manipulation.

AAndre J Denais

57% match

Loading thumbnail…

JS Array Basics

This example demonstrates fundamental JavaScript array operations through console-logged examples. It shows how to generate a numeric range and apply array methods including filter, forEach, map, sort, and reduce. The code also illustrates how reduce can transform an array into an object by accumulating key-value pairs. All operations are performed in plain JavaScript with no external libraries or data sources, using a hardcoded array of numbers and sample entries.

CCaroline Ghisolfi

57% match

Loading thumbnail…

JavaScript Arrays

This example demonstrates fundamental JavaScript array operations, including range generation, sorting, filtering, mapping, and reducing, using a variety of data structures. The code creates a numeric range with a custom `range` function, sorts an array of numbers with a comparator, and applies transformations like doubling values and summing elements. It also defines an array of key-value objects. All operations are logged to the console, with results visible in the browser’s developer tools. The example imports the `ascending` helper from D3, though it is not actively used, and runs within a minimal HTML page with no visual output.

Aalexscott-untitled

56% match

Loading thumbnail…

JavaScript Arrays

This example demonstrates how JavaScript arrays can be manipulated using built-in methods like `range`, `forEach`, `map`, `filter`, `reduce`, and `sort`. It shows the transformation of data through console logging and object creation, highlighting operations such as filtering even numbers, mapping values to doubled pairs, and sorting entries by key. The code uses D3’s `ascending` function for sorting and relies on standard array methods to process and output data. The visualization is purely code-based, with no graphical rendering.

Iibaird6@gatech.edu

56% match

Loading thumbnail…

A set of pure and immutable ES2015 functions aimed to make functional JavaScript more idiomatic.

This example presents a collection of pure, immutable ES2015 utility functions for idiomatic functional JavaScript. It includes array operations such as `combine`, `compact`, `difference`, and `intersection`, object helpers like `merge` and `toMap`, math functions (`min`, `max`, `sum`, `product`), and function decorators including `curry`, `once`, `maybe`, and `pipeline`. The code relies on native JavaScript features like `Array.prototype.includes`, `Set`, `Map`, `Object.assign`, and spread syntax. No external libraries or data sources are used; the gist demonstrates standalone, reusable functional patterns.

JJaxonDvl

56% match