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The History of TypeScript

Explore the origins and development of TypeScript, its role as a JavaScript superset, and the benefits it brings to Angular projects. Understand how TypeScript’s static typing, class features, and tooling support improve code quality. This lesson helps you gain foundational knowledge to effectively use TypeScript in building scalable, maintainable Angular applications.

Transforming small web applications into thick monolithic clients was impossible due to the limitations of earlier JavaScript versions, such as the ECMAScript 5 specification. In a nutshell, large-scale JavaScript applications suffered from serious maintainability and scalability problems as soon as they grew in size and complexity. This issue became more relevant as new libraries and modules required seamless integration into applications. The lack of proper mechanisms for interoperability led to cumbersome solutions that never seemed to fit the bill.

Evolution of JavaScript

As a response to these concerns, ECMAScript 6 (also known as ES6 or ES2015) promised to solve these issues by introducing better module loading functionalities, an improved language architecture for better scope handling, and a wide variety of syntactic sugar to better manage types and objects. Class-based programming introduced an opportunity to embrace a more object-oriented programming (OOP) approach when building large-scale ...