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Pyright

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TSLint

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Pyright vs TSLint: What are the differences?

What is Pyright? Static type checker for the Python language by Microsoft. Typically 5x or more faster than mypy and other type checkers that are written in Python. It is meant for large Python source bases. It can run in a “watch” mode and performs fast incremental updates when files are modified.

What is TSLint? An extensible linter for the TypeScript language. An extensible static analysis tool that checks TypeScript code for readability, maintainability, and functionality errors. It is widely supported across modern editors & build systems and can be customized with your own lint rules, configurations, and formatters.

Pyright and TSLint are primarily classified as "Static Type Checkers" and "Code Review" tools respectively.

Some of the features offered by Pyright are:

  • Hover tool tips that display type information
  • Links to symbol definitions
  • Smart priority queuing for interactive feedback during editing

On the other hand, TSLint provides the following key features:

  • Extensive set of core rules
  • Custom lint rules
  • Custom formatters (failure reporters)

Pyright is an open source tool with 4.21K GitHub stars and 138 GitHub forks. Here's a link to Pyright's open source repository on GitHub.

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What is Pyright?

Typically 5x or more faster than mypy and other type checkers that are written in Python. It is meant for large Python source bases. It can run in a “watch” mode and performs fast incremental updates when files are modified.

What is TSLint?

An extensible static analysis tool that checks TypeScript code for readability, maintainability, and functionality errors. It is widely supported across modern editors & build systems and can be customized with your own lint rules, configurations, and formatters.

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What are some alternatives to Pyright and TSLint?
Pylint
It is a Python static code analysis tool which looks for programming errors, helps enforcing a coding standard, sniffs for code smells and offers simple refactoring suggestions.
TypeScript
TypeScript is a language for application-scale JavaScript development. It's a typed superset of JavaScript that compiles to plain JavaScript.
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.
Flow (JS)
Flow is a static type checker for Javascript created by Facebook.
Sorbet
It is 100% compatible with Ruby. It type checks normal method definitions, and introduces backwards-compatible syntax for method signatures. Explicit method signatures make it useful for anyone reading the code. Type annotations serve as a tool for understanding long after they're written.
See all alternatives