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Precisely Typed React Components with GraphQL Fragments
If your team uses GraphQL and TypeScript, you can take advantage of code generation to colocate fragments with React components, achieving type safety all the way from the page query down to the component props, without over- or under-fetching.
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Extracting event handlers to a function in React while keeping correct types
How to preserve correct TypeScript types when extracting event handlers from JSX elements in React.
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Different approaches for using maps with string keys in Absinthe GraphQL
Learning how to accept strings as keys in Absinthe globally, at the object level, or field level.
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Converting complex JSON into Elixir structs
Ecto isn't just for database interactions — it can also help convert complex JSON structures into Elixir structs. Here's how.
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How to update timezone information (zoneinfo) on Dokku
How to make sure `zoneinfo` gets updated on Dokku when timezone rules change
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Accessing Sequelize transaction in model validator
There are some cases where you might want to implement a validation method for your Sequelize model that queries other rows in your database to check business rules.
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Implementing your own helper to render React.js components on Ruby on Rails ERB templates
Recently I had the opportunity to use Ruby on Rails to develop an internal system for the company I work. It was a good exercise to remember how productive this framework can be, and how single page applications are not always the best choice for every problem.
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Sinon.js causing Express to never finish request in test suite
I was beating my brain out today trying to figure out why my error handling middleware wasn't being called inside the project test suite, but it worked when I did the request directly through the browser.