Flow (JS) vs Jade Language

Overview

Flow (JS)

Stacks145

Followers75

Votes0

GitHub Stars22.2K

Forks1.9K

Jade Language

Stacks7

Followers36

Votes0

Flow (JS) vs Jade Language: What are the differences?

What is Flow (JS)? Flow is a static type checker for Javascript (by Facebook). Flow is a static type checker for Javascript created by Facebook.

What is Jade Language? A Node Template Engine. It is a templating engine, primarily used for server-side templating in NodeJS. It allows you to code without the need of tags making coding quicker and cleaner.

Flow (JS) can be classified as a tool in the "Static Type Checkers" category, while Jade Language is grouped under "Templating Languages & Extensions".

Flow (JS) is an open source tool with 19.9K GitHub stars and 1.69K GitHub forks. Here's a link to Flow (JS)'s open source repository on GitHub.

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Advice on Flow (JS), Jade Language

StackShare

Aug 13, 2019

Needs adviceon

TypeScript

CoffeeScript

JavaScript

From a StackShare community member: "We are looking to rewrite our outdated front-end with TypeScript. Right now we have a mix of CoffeeScript and vanilla JavaScript. I have read that adopting TypeScript can help enforce better code quality, and best practices. I also heard good things about Flow (JS). Which one would you recommend and why?"

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Comments

Oleksandr

Senior Software Engineer at joyn

Oct 21, 2019

Decided

Initially making a decision to use Flow vs Typescript we decided to go with flow as we wanted our code to run in a way we wrote it, because when using Flow types are simply removed from the code without modifying the code itself. Sadly, the type system of Flow was in some cases very hard to understand and declare the types correctly, especially in cases when the structure is very dynamic (e.g. object keys and values are created dynamically). Another reason was bad integration with IDE and frequent crashes which made DX very poor. Therefore, we made another evaluation of Typescript and decided to move towards it. As our code base was pretty big when we decided to migrate to TS we couldn't just stop and re-write everything, that's why we started writing new modules in Typescript as well as transforming old components. To make that possible we had to configure Webpack loader to support simultaneous bundling of Flow&JS and Typescript. After around 2 months of the transformation we have around 40% of code being written in Typescript and we are more than happy with integration TS has with IDE, as well as ease of declaring types for dynamic modules and functions.

149k views149k

Comments

Vladyslav

Sr. Directory of Technology at Shelf

Oct 25, 2019

Decided

As our codebase grew in size, we were looking for ways to improve code quality. We chose TypeScript over Flow due to its rapid industry adoption and overall tools support.

We noticed how different open-source projects were migrating from Flow to TypeScript. Most notably, it was Jest, even though Jest and Flow were both developed by Facebook. See this HN thread if you want to dive into an interesting discussion around this move.

Additionally, at the beginning of 2019, both Babel and ESLint enabled seamless TypeScript support, which allowed easy migration path in a backward-compatible way.

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Comments

Detailed Comparison

Flow (JS)	Jade Language
Flow is a static type checker for Javascript created by Facebook.	It is a templating engine, primarily used for server-side templating in NodeJS. It allows you to code without the need of tags making coding quicker and cleaner.
Type Inference; Easy Integration; Realtime Feedback	-
Statistics
GitHub Stars 22.2K	GitHub Stars -
GitHub Forks 1.9K	GitHub Forks -
Stacks 145	Stacks 7
Followers 75	Followers 36
Votes 0	Votes 0

What are some alternatives to Flow (JS), Jade Language?

CoffeeScript

It adds syntactic sugar inspired by Ruby, Python and Haskell in an effort to enhance JavaScript's brevity and readability. Specific additional features include list comprehension and de-structuring assignment.

TypeScript

TypeScript is a language for application-scale JavaScript development. It's a typed superset of JavaScript that compiles to plain JavaScript.

Pug

This project was formerly known as "Jade." Pug is a high performance template engine heavily influenced by Haml and implemented with JavaScript for Node.js and browsers.

Handlebars.js

Handlebars.js is an extension to the Mustache templating language created by Chris Wanstrath. Handlebars.js and Mustache are both logicless templating languages that keep the view and the code separated like we all know they should be.

Mustache

Mustache is a logic-less template syntax. It can be used for HTML, config files, source code - anything. It works by expanding tags in a template using values provided in a hash or object. We call it "logic-less" because there are no if statements, else clauses, or for loops. Instead there are only tags. Some tags are replaced with a value, some nothing, and others a series of values.

Slim Lang

Slim is a template language whose goal is to reduce the view syntax to the essential parts without becoming cryptic. It started as an exercise to see how much could be removed from a standard html template (<, >, closing tags, etc...). As more people took an interest in Slim, the functionality grew and so did the flexibility of the syntax.

RactiveJS

Ractive was originally created at theguardian.com to produce news applications. Ractive takes your Mustache templates and transforms them into a lightweight representation of the DOM – then when your data changes, it intelligently updates the real DOM.

EJS

It is a simple templating language that lets you generate HTML markup with plain JavaScript. No religiousness about how to organize things. No reinvention of iteration and control-flow. It's just plain JavaScript.

Jinja

It is a full featured template engine for Python. It has full unicode support, an optional integrated sandboxed execution environment, widely used and BSD licensed.