Dust vs Handlebars.js vs TypeScript: What are the differences?

1. Template Language Syntax: Dust uses a logic-less template language, which means it focuses on separating the logic from the presentation. On the other hand, Handlebars.js provides a templating language that allows for the embedding of logic directly into the templates, making it easier to work with conditional statements, loops, and helpers.

2. Partials and Layouts: Handlebars.js has built-in support for partials, making it easier to reuse components across multiple templates. Dust, however, requires more manual setup to include partials or layouts in the templates, which can lead to more complexity in the codebase.

3. Security Features: TypeScript is a superset of JavaScript that adds static typing and other features to help catch errors at compile time, making it easier to write safer and more reliable code. Dust and Handlebars.js, on the other hand, do not offer these additional security features, which can make them more prone to runtime errors.

4. Template Inheritance: Handlebars.js supports template inheritance, allowing for the creation of base templates that can be extended by child templates. Dust does not have built-in support for template inheritance, making it more challenging to create and manage complex template hierarchies.

5. Community and Ecosystem: TypeScript has a large and active community with extensive documentation, third-party libraries, and tools available to support developers. While Handlebars.js also has a strong community, Dust may have a smaller ecosystem and fewer resources available for developers.

6. Performance: Handlebars.js is known for its fast performance, with efficient template rendering and caching mechanisms in place. Dust, while still performant, may not offer the same level of optimization out of the box, requiring additional tuning for high-performance applications.

In Summary, the key differences between Dust, Handlebars.js, and TypeScript lie in their template language syntax, support for partials and layouts, security features, template inheritance capabilities, community and ecosystem support, and performance optimizations.