Difference between TSLint and ESLint

In this article, we will discuss the difference between TSLint and ESLint. Before discussing their differences, we must know about Linters, TSLint, and ESLint.

What are Linters?

Linters are tools used to detect errors, analyze the source code, and improve overall code quality. They use some rules and identify syntax errors. They are used for automating code reviews and supporting the continuous integration of code. Some of the commonly used linters are ESLint for JavaScript and TypeScript, JSLint for JavaScript, TSLint for TypeScript, Pylint for Python, etc.

What is the TSLint?

It is a linter designed for TypeScript. This linter helps find errors in TypeScript code. It provides a set of rules to catch common issues like unused variables, incorrect formatting, and other stylistic problems. TSLint was widely used before the introduction of ESLint.

Before the depreciation of TSLint, it is used in Legacy TypeScript Projects to ensure consistent coding styles and catch potential issues. It provides type safety and enforces checking for strict null checks.

What is the ESLint?

ESLint is an open-source linter used for JavaScript and TypeScript. It analyses code to identify errors, enforce coding standards and improve code quality. It is commonly used in modern projects. The '@typescript-eslint' plugin is used to lint the code present in TypeScript.

ESLint is widely used in projects using modern frameworks like React, Vue, and Angular. This linter also uses TypeScript-specific rules while benefiting from the broader JavaScript ecosystem. Cross-project consistency is one of the most used features in ESLint.

Key differences between TSLint and ESLint:

Conclusion:

In conclusion, TSLint and ESLint both played crucial roles in maintaining code quality, but their paths have diverged with the evolution of development practices. TSLint was once the standard for TypeScript projects, ensuring consistent coding styles and catching potential issues specific to TypeScript. However, with its deprecation in 2019, the focus has shifted to ESLint, which offers a more versatile and comprehensive solution. ESLint's ability to lint both JavaScript and TypeScript, along with its extensive plugin ecosystem and strong community support, has made it the preferred choice for modern projects. It seamlessly integrates with popular frameworks like React, Vue, and Angular, providing developers with the tools they need to enforce coding standards and improve overall code quality.