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Lodash vs TypeScript: What are the differences?

Introduction

Lodash and TypeScript are both commonly used technologies in web development. However, they serve different purposes and have distinct features. In this markdown, I will outline the key differences between Lodash and TypeScript.

  1. Language vs Library: The most fundamental difference between Lodash and TypeScript is that Lodash is a JavaScript library, while TypeScript is a programming language. Lodash provides a set of utility functions that enhance JavaScript's functionality, while TypeScript is a superset of JavaScript that introduces static typing and additional features.

  2. Functional Programming vs Type Safety: Lodash is primarily focused on providing utility functions for functional programming, such as array manipulation, iteration, and object manipulation. On the other hand, TypeScript is focused on adding static typing to JavaScript, which allows for better code organization, error prevention, and improved tooling.

  3. Compatibility: Lodash can be used with any JavaScript project, regardless of the programming language being used. It provides a wide range of utility functions that can be used in both JavaScript and TypeScript projects. On the other hand, TypeScript is specifically designed for JavaScript projects and is not compatible with other programming languages.

  4. Development Environment: Lodash can be used directly in any JavaScript environment without any additional setup. It can be installed using package managers like npm or included as a script in HTML files. On the other hand, TypeScript requires a development environment that supports TypeScript compilation, such as an IDE like Visual Studio Code or a build system like Webpack.

  5. Static Typing: TypeScript introduces static typing, allowing developers to specify the types of variables, function arguments, and return types. This enables better code validation and tooling, as well as improved code documentation. Lodash, being a JavaScript library, does not have built-in support for static typing.

  6. Code Complexity: Lodash provides a wide range of utility functions that can simplify common programming tasks. It reduces code complexity by providing well-tested and optimized functions for common operations. In contrast, TypeScript introduces additional complexity due to its static typing system, requiring developers to define types and handle type conversion.

In summary, Lodash is a JavaScript library that focuses on providing utility functions for functional programming, while TypeScript is a programming language that introduces static typing to JavaScript, enhancing code organization and error prevention. Lodash can be used with any JavaScript project, while TypeScript requires specific development environments and is not compatible with other programming languages.

Advice on Lodash and TypeScript
Needs advice
on
TypeScriptTypeScript
and
Flow (JS)Flow (JS)

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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Replies (14)
Recommends
on
TypeScriptTypeScript

I use TypeScript because:

  • incredible developer tooling and community support
  • actively developed and supported by Microsoft (yes, I like Microsoft) ;)
  • easier to make sense of a TS codebase because the annotations provide so much more context than plain JS
  • refactors become easier (VSCode has superb support for TS)

I've switched back and forth between TS and Flow and decided a year ago to abandon Flow completely in favor of TS. I don't want to bash Flow, however, my main grievances are very poor tooling (editor integration leaves much to be desired), a slower release cycle, and subpar docs and community support.

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Recommends
on
TypeScriptTypeScript

I use TypeScript because it isn't just about validating the types I'm expecting to receive though that is a huge part of it too. Flow (JS) seems to be a type system only. TypeScript also allows you to use the latest features of JavaScript while also providing the type checking. To be fair to Flow (JS), I have not used it, but likely wouldn't have due to the additional features I get from TypeScript.

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David Koblas
VP Engineering at Not disclosed · | 9 upvotes · 166.5K views
Recommends
on
TypeScriptTypeScript
at

We originally (in 2017) started rewriting our platform from JavaScript to Flow (JS) but found the library support for Flow was lacking. After switching gears to TypeScript we've never looked back. At this point we're finding that frontend and backend libraries are supporting TypeScript out of the box and where the support is missing that the commuity is typically got a solution in hand.

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Forrest Norvell
engineering manager at self-employed · | 6 upvotes · 256.4K views
Recommends
on
TypeScriptTypeScript

I use TypeScript because the tooling is more mature (the decision to discontinue TSLint in favor of moving all its checks to ESLint is a thoughtful and mature decision), there's a ton of examples and tutorials for it, and it just generally seems to be where the industry is headed. Flow (JS) is a fine tool, but it just hasn't seen the uptake that TS has, and as a result is lacking a lot of the nicer small things, like thorough Visual Studio Code integration, offered by TS.

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Recommends
on
TypeScriptTypeScript

We currently use TypeScript at work. Previously we used Flow (JS) but it was sometimes really difficult to make the types work the way you want. Especially non-trivial types were problematic. And the IDE support wasn't good, Flow took too much resources and sometimes remain stuck and do not show errors (I use Visual Studio Code). With TypeScript we almost do not have these problems. IDE support is superb, working with types is much easier and typing system seems more mature and powerful. There are some downsides (like partion inheritance etc.), but TS team is still pushing it forward. So for me TypeScript is clear winner.

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Tim Abbott
Recommends
on
UnderscoreUnderscore
at

We use Underscore because it's a reasonable library for providing all the reasonable helper functions missing from JavaScript ES5 (or that perform poorly if you use the default ES5 version).

Since we're migrating the codebase to TypeScript , we'll likely end up removing most usage of it and ultimately no longer needing it, but we've been very happy with the library.

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Recommends
on
TypeScriptTypeScript

I use TypeScript for Web Applications and for both frontend and backend because it has a lot of tooling around it and they really got the types and type safety right. Flow (JS) on the other hand lacks tooling and most of the times I scramble to find the right way of building my contracts in which TypeScript is very intuitive and natural. Additionally TypeScript is very similar to Java so your backend engineers and full stack engineers can work with it without much of context switch.

The only time I think Flow shines is (based on probably my outdated knowledge) Flow is/was the only option if you want/wanted to build a React Native application mainly because React Native transpiler at the time I was working with it would only work with flow.

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Recommends
on
TypeScriptTypeScript

I use TypeScript because it's adoption by many developers, it's supported by many companies, and it's growth. AngularJS, React, @ASP.NET Core. I started using it in .NET Core, then for a job. Later I added more Angular experience and wrote more React software. It makes your code easier to understand and read... which means it makes other people's code easier to understand and read.

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Recommends
on
TypeScriptTypeScript

If you will start a project from scratch I recommend to use TypeScript. But, If you work with legacy projects written in JavaScript I recommend Flow (JS). Both tools have the same objective: reduce the bad code (which create illegible code, generate bugs e problems to maintenance). Flex helps you to avoid fall in bad codes, but TypeScript prevent you to c you to create bad codes. I believe cause this some JavaScript fans don't like TS, because TS block you to write some types o code. This is the fundamental difference between TS and Flow: Flow avoid problems, but no force. TS force you to prevent problems.

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Recommends
on
TypeScriptTypeScript

I use TypeScript because it's the most mature/issue-free Javascript type-checker available, as far as I've seen.

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Recommends
on
TypeScriptTypeScript

I use TypeScript because of broad support, on tools, repos, community ... the only reason to consider flow is if you're a facebook employee

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Frédéric MARAND
Core Developer at OSInet · | 2 upvotes · 138.6K views
Recommends
on
TypeScriptTypeScript

I use TypeScript because I tried both on a Meteor project, and found the quantity of errors it enabled us to catch and the simplification of code it allowed was higher than Flow (JS).

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Damian Esteban
CTO @ betterPT at BetterPT · | 1 upvotes · 126.3K views
Recommends
on
TypeScriptTypeScript
at

I recommend TypeScript. When used correctly, TypeScript can enable your application to be scalable, easy to refactor, safe, and stable. One of the biggest draws of working with any typed language is that it forces you to think about your functions' inputs and outputs. This is invaluable as it can lead to more declarative, functional style code that ultimately can be easier to reason about.

TypeScript is however not a silver bullet. Just like anything new it takes time to fully understand the concepts of types, interfaces, abstract classes, and enums. In my experience engineers who excel when using TypeScript are those who have experience working with a statically typed language.

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Rafael Avaria
Ingeniero civil en electrónica · | 1 upvotes · 125.1K views
Recommends
on
TypeScriptTypeScript

I use TypeScript because i love to program in Angular and used in node as well

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Decisions about Lodash and TypeScript

Fast Healthcare Interoperability Resources (FHIR) provides standard data objects in JSON format for the healthcare industry. Since JSON objects are hierarchical and tree-like, we had a need to defensively 'pluck' fields from our JSON objects and do lots of mapping. We tried jQuery and Underscore and a few other technologies like FHIRPath; but Lodash has been the most well supported, works in the most contexts, has the cleanest syntax, etc. We particularly like the ES6 version of Lodash, where we can import the method names directly, without resorting to * or _ syntax. We got hooked on the 'get' function to defensively pluck fields from objects without crashing our user interface, and have found countless uses for the other lodash functions throughout our apps. Lodash is great for developing and optimizing algorithms.

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Vladyslav Holubiev
Sr. Directory of Technology at Shelf · | 3 upvotes · 143.4K views

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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Oleksandr Fedotov
Senior Software Engineer at joyn · | 4 upvotes · 123.6K views

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.

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Pros of Lodash
Pros of TypeScript
  • 2
    Better than Underscore
  • 1
    Simple
  • 0
    Better that Underscore
  • 174
    More intuitive and type safe javascript
  • 106
    Type safe
  • 80
    JavaScript superset
  • 48
    The best AltJS ever
  • 27
    Best AltJS for BackEnd
  • 15
    Powerful type system, including generics & JS features
  • 11
    Compile time errors
  • 11
    Nice and seamless hybrid of static and dynamic typing
  • 10
    Aligned with ES development for compatibility
  • 7
    Angular
  • 7
    Structural, rather than nominal, subtyping
  • 5
    Starts and ends with JavaScript
  • 1
    Garbage collection

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Cons of Lodash
Cons of TypeScript
  • 1
    It reduce the performance
  • 5
    Code may look heavy and confusing
  • 4
    Hype

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What is Lodash?

A JavaScript utility library delivering consistency, modularity, performance, & extras. It provides utility functions for common programming tasks using the functional programming paradigm.

What is TypeScript?

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

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What companies use Lodash?
What companies use TypeScript?
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What are some alternatives to Lodash and TypeScript?
jQuery
jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML.
Underscore
A JavaScript library that provides a whole mess of useful functional programming helpers without extending any built-in objects.
Ramda
It emphasizes a purer functional style. Immutability and side-effect free functions are at the heart of its design philosophy. This can help you get the job done with simple, elegant code.
ES6
Goals for ECMAScript 2015 include providing better support for large applications, library creation, and for use of ECMAScript as a compilation target for other languages. Some of its major enhancements include modules, class declarations, lexical block scoping, iterators and generators, promises for asynchronous programming, destructuring patterns, and proper tail calls.
RxJS
RxJS is a library for reactive programming using Observables, to make it easier to compose asynchronous or callback-based code. This project is a rewrite of Reactive-Extensions/RxJS with better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that reduce the API surface.
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