Learning Node.js and React while building a product

Re:Learning Node.js and React while building a product by antihero on Tuesday June 13, 2017 @01:34PM (#14546691)

I've found that the best way to make event handlers is instead of doing

     class Blah {
        private handleThing(...) {}
     }

to instead do this

    class Blah {
        private handlething = (...) => {}
    }

this means that it is created only once, at instantiation of the component, so it is fast, looks decent, and has access to `this` as it's technically a method on the object, not the class.

Also, if you're coming from C# land, head straight to TypeScript 2.3 - it's lush and handles the latest ECMAScript stuff wonderfully, and you get static type checking, interfaces, union types, etcetera. The only issue is when a package has no type definitions or no supplementary @types package, which sucks but they exist for most popular packages. Also VS Code is built with it in mind and brilliant to work with.

As for stacks, I'm currently really enjoying redux/redux-observable and my helper lib redux-rx-http (for API), I find harnessing the power of RxJS to manage side-effects through "epics" is a really elegant and decoupled way to chain a bunch of things that you want happen together.

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Re:Learning Node.js and React while building a product by jbrantly on Tuesday June 13, 2017 @04:36PM (#14548399)

One problem with using fat arrow syntax like this is the method is no longer attached to the prototype so it's not shared across all instances and is less memory efficient. It also doesn't work well with React HMR if you're using that. If you can use decorators I highly recommend autobind-decorator: https://github.com/andreypopp/autobind-decorator

Also I think you're using a TypeScript-specific `private` syntax there which likely changes the runtime semantics so my comment really only applies if you don't use that.

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Re:Learning Node.js and React while building a product by miroslavpopovic on Tuesday June 13, 2017 @04:00PM (#14548089)

Yep, the class property syntax helps with event handlers.

As for C# and TypeScript, we also have a very strong JavaScript background, from vanilla pre-ES6 to the latest ES2017+. We still prefer JavaScript to TypeScript, although out of languages that compile to JS, TypeScript is the best in our opinion.

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