rsvp.js
promises-spec
rsvp.js | promises-spec | |
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1 | 22 | |
3,621 | 1,831 | |
0.0% | 0.2% | |
0.0 | 0.0 | |
7 months ago | 9 months ago | |
JavaScript | ||
MIT License | Creative Commons Zero v1.0 Universal |
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rsvp.js
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Resolved Promises and Promise Fates
Before promises arrived natively in JS, there were(and still are) many separate independent promise implementations in the form of third-party libraries for example Q, RSVP, etc. Even jQuery has its own custom implementation that they call deferreds. The name and the implementation might differ from library to library but the intention is the same, making asynchronous code behave like synchronous code.
promises-spec
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Implement Promises/A+ from scratch
Today, I tried implementing Promises/A+ from scratch to test my coding skill. In the process, I’ve crafted this guide to share my insights and experiences with those who share a similar interest. Without further ado, let’s dive in.
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Using XPath in 2023
That made me chuckle.
For those not familiar with the promise design controversy:
http://brianmckenna.org/blog/category_theory_promisesaplus
https://github.com/promises-aplus/constructor-spec/issues/24
https://github.com/promises-aplus/promises-spec/issues/94
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Why is JavaScript so hated?
If you really want to go down the rabbit hole on this one, start here
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What the imperative shell of an Functional Core/Imperative Shell language looks like
Advantage 1, nesting, is the most important here, and it's often the most-overlooked advantage. Overlooking nesting is how Promises in Javascript got to be fundamentally broken.
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[AskJS] Is JavaScript missing some built-in methods?
Have you read the infamous GitHub thread where people tried to fix this before it got finalized? It's quite a trip
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This typo lasted several pomodoro sessions.
1.) JS implementation of Promise is not a monad. See this StackOverflow answer or this GitHub discussion for more details
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How to implement Promise in a FAANG interview
In this article, we will go over how to implement a basic version of a promise during a FAANG interview. The standard for promise implementation is called A+, but it includes a huge amount of details, making it almost impossible to implement all of them during a one-hour coding interview. Therefore, we will focus on implementing a basic variation that should be enough to show the interviewer your solving skills.
- what object
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Oopsy Poopsy ahahaha *sharts uncontrollably*
Hey, at least you weren't these guys: https://github.com/promises-aplus/promises-spec/issues/94
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Haskell is the greatest programming language of all time ... the rational adult in a room full of children ... When I program in Haskell, I am in utopia. I am in a different world than 99.9% of what I see posted on Reddit.
Total carnage
What are some alternatives?
q - A promise library for JavaScript
proposal-symbol-thenable
zx - A tool for writing better scripts
proposal-set-methods - Proposal for new Set methods in JS
cats-effect - The pure asynchronous runtime for Scala
purescript - A strongly-typed language that compiles to JavaScript
fantasy-land - Specification for interoperability of common algebraic structures in JavaScript
fp-ts - Functional programming in TypeScript
algo.monads - Macros for defining monads, and definition of the most common monads
fontoxpath - A minimalistic XPath 3.1 implementation in pure JavaScript
camaro - camaro is an utility to transform XML to JSON, using Node.js binding to native XML parser pugixml, one of the fastest XML parser around.