jrsinclair - Hackdot

Rendering Mazes on the Web

Posted by jrsinclair on Monday August 25, 2025 @04:23AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2025/rendering-mazes-on-the-web/

( Read More... | no comments | on HN )

The joy of recursion, immutable data, & pure functions: Making mazes with JS

Posted by jrsinclair on Monday August 18, 2025 @03:57AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2025/joy-of-immutable-data-recursion-pure-functions-javascript-mazes/

( Read More... | 20 comments | on HN )

What's the difference between named functions and arrow functions in JavaScript?

Posted by jrsinclair on Monday June 30, 2025 @05:10AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2025/whats-the-difference-between-named-functions-and-arrow-functions/

( Read More... | 23 comments | on HN )

How to compose JavaScript functions that take multiple parameters (epic guide)

Posted by jrsinclair on Monday June 10, 2024 @06:51PM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2024/how-to-compose-functions-that-take-multiple-parameters-epic-guide/

( Read More... | no comments | on HN )

Introduction to Lenses in JavaScript

Posted by jrsinclair on Monday November 22, 2021 @02:26AM
from the leihuang.dev dept.

https://leihuang.dev/blog/2019/introduction-to-lenses-in-javascript/

( Read More... | no comments | 3 points | on HN )

Sick of the stupid jokes? Write your own high-precision JavaScript math library

Posted by jrsinclair on Monday November 30, 2020 @04:21AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2020/sick-of-the-jokes-write-your-own-arbitrary-precision-javascript-math-library/

( Read More... | no comments | 2 points | on HN )

The algebraic structure of functions, illustrated using React components

Posted by jrsinclair on Monday April 13, 2020 @06:28AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2020/algebraic-structure-of-functions-illustrated-with-react-components/

( Read More... | 10 comments | 106 points | on HN )

What's more fantastic than fantasy land? Static Land

Posted by jrsinclair on Wednesday January 29, 2020 @05:12PM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2020/whats-more-fantastic-than-fantasy-land-static-land/

( Read More... | no comments | on HN )

Algebraic Data Types: Things I wish someone had explained about FP

Posted by jrsinclair on Tuesday November 19, 2019 @05:50AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/algebraic-data-types-what-i-wish-someone-had-explained-about-functional-programming

( Read More... | 112 comments | 242 points | on HN )

Type Classes: Things I wish someone had explained about functional programming

Posted by jrsinclair on Wednesday November 13, 2019 @05:55AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/type-classes-what-i-wish-someone-had-explained-about-functional-programming/

( Read More... | no comments | 2 points | on HN )

Algebraic Structures: Things I wish someone had explained about FP

Posted by jrsinclair on Monday November 04, 2019 @07:21AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/algebraic-structures-what-i-wish-someone-had-explained-about-functional-programming/

( Read More... | 93 comments | 354 points | on HN )

Things I wish someone had explained about functional programming

Posted by jrsinclair on Monday October 28, 2019 @06:42AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/what-i-wish-someone-had-explained-about-functional-programming/

( Read More... | no comments | 4 points | on HN )

What are higher-order functions, and why should anyone care?

Posted by jrsinclair on Monday July 01, 2019 @09:34PM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/what-is-a-higher-order-function-and-why-should-anyone-care/

( Read More... | no comments | on HN )

Functional JavaScript: Traversing Trees with a Recursive Reduce

Posted by jrsinclair on Wednesday June 12, 2019 @07:30AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/functional-js-traversing-trees-with-recursive-reduce/

( Read More... | no comments | on HN )

Functional JavaScript: Five ways to calculate an average with array reduce

Posted by jrsinclair on Thursday May 30, 2019 @10:16AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/five-ways-to-average-with-js-reduce/

( Read More... | no comments | 2 points | on HN )

Functional JavaScript: How to use array reduce for more than just numbers

Posted by jrsinclair on Wednesday May 22, 2019 @08:41AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/functional-js-do-more-with-reduce/

( Read More... | no comments | on HN )

Elegant Error Handling with the JavaScript Either Monad

Posted by jrsinclair on Wednesday May 15, 2019 @07:06AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/elegant-error-handling-with-the-js-either-monad/

( Read More... | no comments | on HN )

How to run async JavaScript functions in sequence or parallel

Posted by jrsinclair on Wednesday May 08, 2019 @07:20AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/how-to-run-async-js-in-parallel-or-sequential/

( Read More... | no comments | on HN )

How do you compose JavaScript functions with multiple parameters?

Posted by jrsinclair on Friday April 26, 2019 @08:15AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2019/compose-js-functions-multiple-parameters/

( Read More... | no comments | on HN )

A Civilised Guide to JavaScript Array Methods (cheat Sheet)

Posted by jrsinclair on Thursday January 03, 2019 @03:08AM
from the jrsinclair.com dept.

https://jrsinclair.com/javascript-array-methods-cheat-sheet

( Read More... | no comments | 2 points | on HN )

Object destructuring and currying in functional JavaScript

Posted by jrsinclair on Tuesday November 20, 2018 @06:08PM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2018/currying-destructured-function-parameters-javascript/

( Read More... | no comments | 2 points | on HN )

How to deal with dirty side effects in your pure functional JavaScript

Posted by jrsinclair on Tuesday August 07, 2018 @02:22AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2018/how-to-deal-with-dirty-side-effects-in-your-pure-functional-javascript/

( Read More... | no comments | 3 points | on HN )

How to use React (and Redux) with your crufty old CMS

Posted by jrsinclair on Wednesday June 13, 2018 @03:44AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2018/how-to-use-react-redux-with-your-crufty-old-cms/

( Read More... | no comments | 3 points | on HN )

React, Redux and JavaScript Architecture

Posted by jrsinclair on Monday January 08, 2018 @12:37AM
from the jrsinclair.com dept.

https://jrsinclair.com/articles/2018/react-redux-javascript-architecture/

( Read More... | 2 comments | 10 points | on HN )

Faster, Better, Cheaper – The Art of Making Software

Posted by jrsinclair on Monday June 05, 2017 @02:27AM
from the jrsinclair.com dept.

http://jrsinclair.com/articles/2017/faster-better-cheaper-art-of-making-software/

( Read More... | 23 comments | 154 points | on HN )

JavaScript. But less iffy

Posted by jrsinclair on Saturday March 25, 2017 @07:23AM
from the jrsinclair.com dept.

http://jrsinclair.com/articles/2017/javascript-but-less-iffy/

( Read More... | 1 comment | 8 points | on HN )

JavaScript Without Loops

Posted by jrsinclair on Friday February 10, 2017 @02:13AM
from the jrsinclair.com dept.

http://jrsinclair.com/articles/2017/javascript-without-loops/

( Read More... | no comments | 5 points | on HN )

Indentation is the enemy: Writing less complex JavaScript

Posted by jrsinclair on Monday January 30, 2017 @02:21PM
from the jrsinclair.com dept.

http://jrsinclair.com/articles/2017/indentation-is-the-enemy-less-complex-javascript/

( Read More... | no comments | on HN )

The Marvellously Mysterious JavaScript Maybe Monad

Posted by jrsinclair on Sunday August 07, 2016 @09:21PM
from the jrsinclair.com dept.

http://jrsinclair.com/articles/2016/marvellously-mysterious-javascript-maybe-monad/

( Read More... | no comments | 2 points | on HN )