When comparing Yesod vs TsED, the Slant community recommends Yesod for most people. In the question“What are the best backend web frameworks?” Yesod is ranked 12th while TsED is ranked 57th. The most important reason people chose Yesod is:
While not required, Yesod offers templating through a Shakespearean family of languages to produce page code.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Offers templating for type-safe, well-formed content
While not required, Yesod offers templating through a Shakespearean family of languages to produce page code.
Pro Uses type-safe URLs
Ensures that data provided by the URL is type-safe. This means that data in the URL has a definitive type.
Pro Can be used without knowing much Haskell
While Yesod is written in Haskell, developers can achieve basic functionality without much investment in the language.
Pro Brings MVC to Express
One of the conns of Express (even in this site) is the lack of structure.
This framework brings structure to Express applications which makes large-scale development much easier
Pro Uses decorators
Similar to most other popular frameworks
Pro Adding string types to Express with Typescript
Express is already an awesome framework, but with types it makes the work much easier
Pro Great support
Any issue opened gets resolved or answered very quickly
Pro Great documentation
Updated regularly
Cons
Con Is hard to customize
Learning how Yesod works internally is hard. It is a large framework with complicated components. Finding the appropriate code and understanding how it contributes to the framework is difficult, meaning developers will struggle.
Con Too much template haskell
You actually want to code in haskell and not some DSL with "magic" hidden under the bonnet.